{"id":287279,"date":"2024-10-21T05:08:22","date_gmt":"2024-10-21T05:08:22","guid":{"rendered":"https:\/\/www.ziptuning.com\/zh\/?p=287279"},"modified":"2024-10-21T05:09:01","modified_gmt":"2024-10-21T05:09:01","slug":"p0491-secondary-air-injection-system-insufficient-flow","status":"publish","type":"post","link":"https:\/\/www.ziptuning.com\/zh\/blog\/p0491-secondary-air-injection-system-insufficient-flow\/","title":{"rendered":"P0491 &#8211; \u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u6c14\u6d41\u4e0d\u8db3"},"content":{"rendered":"<h2 id=\"what-is-the-p0491-code-\">P0491\u6545\u969c\u7801\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>OBD-II\u6545\u969c\u7801<strong>P0491<\/strong> \u8868\u793a\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u5728\u53d1\u52a8\u673a\u51b7\u542f\u52a8\u65f6\uff0c\u6c14\u7f38\u7ec41\uff08\u5305\u542b1\u53f7\u6c14\u7f38\u4e00\u4fa7\uff09\u672a\u63d0\u4f9b\u8db3\u591f\u7684\u6c14\u6d41\u5230\u6392\u6c14\u7cfb\u7edf\u4e2d\u3002<\/p>\n<div class=\"workshop-experience-text\">\n<p>\u5728\u6211\u4eec\u7684\u8f66\u95f4\uff0c\u6211\u4eec\u7ecf\u5e38\u9047\u5230P0491\u6545\u969c\u7801\uff0c\u5c24\u5176\u662f\u5728\u5965\u8fea\uff08Audi\uff09\u3001\u5b9d\u9a6c\uff08BMW\uff09\u3001\u4fdd\u65f6\u6377\uff08Porsche\uff09\u548c\u5927\u4f17\uff08Volkswagen\uff09\u7b49\u6b27\u6d32\u54c1\u724c\u4e2d\u3002\u5c31\u5728\u4e0a\u5468\uff0c\u4e00\u4f4d\u5ba2\u6237\u5e26\u77402005\u5e74\u7684\u4fdd\u65f6\u6377\u5361\u5bb4\uff08Porsche Cayenne\uff09\u6765\u4fee\u8f66\uff0c\u663e\u793a\u6b64\u6545\u969c\u7801\u3002\u7ecf\u8fc7\u5728\u8bba\u575b\u4e0a\u7684\u7814\u7a76\uff0c\u6211\u53d1\u73b0\u95ee\u9898\u901a\u5e38\u51fa\u5728\u8fde\u63a5\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u7684\u771f\u7a7a\u7ba1\u4e0a\u3002\u679c\u7136\uff0c\u5f53\u6211\u68c0\u67e5\u4e8c\u6b21\u7a7a\u6c14\u6cf5\u540e\u9762\u7684\u7ba1\u8def\u65f6\uff0c\u53d1\u73b0\u6709\u4e24\u6761\u901a\u5f80\u6392\u6c14\u5207\u65ad\u9600\u7684\u8f6f\u7ba1\u5f00\u88c2\u3002\u6211\u7528\u7845\u80f6\u7ba1\u66ff\u6362\u4e86\u635f\u574f\u7684\u90e8\u5206\uff0c\u6e05\u9664\u6545\u969c\u7801\u5e76\u8fdb\u884c\u4e86\u8bd5\u9a7e\uff0c\u8f66\u8f86\u8fd0\u884c\u987a\u7545\uff0c\u6545\u969c\u7801\u518d\u4e5f\u6ca1\u6709\u51fa\u73b0\u3002\u89e3\u51b3\u8fd9\u4e9b\u5e38\u89c1\u95ee\u9898\uff0c\u5e76\u8ba9\u8fd9\u4e9b\u9ad8\u6027\u80fd\u673a\u5668\u91cd\u65b0\u4e0a\u8def\uff0c\u786e\u5b9e\u5f88\u4ee4\u4eba\u6ee1\u610f\u3002<\/p>\n<\/div>\n<h2 id=\"urgency-and-severity\">\u7d27\u6025\u7a0b\u5ea6\u548c\u4e25\u91cd\u6027<\/h2>\n<p>\u5f53\u51fa\u73b0P0491\u6545\u969c\u7801\u65f6\uff0c\u901a\u5e38\u53ef\u4ee5\u8c28\u614e\u7ee7\u7eed\u9a7e\u9a76\u3002\u8f66\u8f86\u53ef\u80fd\u4f1a\u8868\u73b0\u51fa\u4ee5\u4e0b\u75c7\u72b6\uff1a<\/p>\n<ul>\n<li>\u53d1\u52a8\u673a\u6545\u969c\u706f\u4eae\u8d77<\/li>\n<li>\u53d1\u52a8\u673a\u5728\u51b7\u542f\u52a8\u65f6\u8fd0\u884c\u4e0d\u7a33\u5b9a<\/li>\n<li>\u6392\u653e\u589e\u52a0<\/li>\n<\/ul>\n<p>\u867d\u7136\u6b64\u6545\u969c\u7801\u7684\u4e25\u91cd\u6027\u4e0d\u5982\u5176\u4ed6\u4e00\u4e9b\u6545\u969c\uff0c\u4f46\u5b83\u53ef\u80fd\u5bfc\u81f4\u8f66\u8f86\u5728\u884c\u9a76\u4e2d\u7184\u706b\uff0c\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u53ef\u80fd\u5bfc\u81f4\u8f66\u8f86\u5728\u6392\u653e\u6d4b\u8bd5\u4e2d\u4e0d\u5408\u683c\u3002\u56e0\u6b64\uff0c\u6700\u597d\u5c3d\u5feb\u8bca\u65ad\u5e76\u4fee\u590d\u8be5\u95ee\u9898\u3002<\/p>\n<h2 id=\"code-applicability\">\u9002\u7528\u8303\u56f4<\/h2>\n<p>P0491\u662f\u4e00\u4e2a\u901a\u7528\u52a8\u529b\u603b\u6210\u6545\u969c\u7801\uff0c\u9002\u7528\u4e8e\u914d\u5907\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u7684\u591a\u79cd\u54c1\u724c\u548c\u578b\u53f7\uff0c\u5c24\u5176\u662fV\u578b\u53d1\u52a8\u673a\u914d\u7f6e\u7684\u8f66\u8f86\u3002\u5177\u4f53\u7684\u90e8\u4ef6\u548c\u7ef4\u4fee\u7a0b\u5e8f\u53ef\u80fd\u56e0\u5236\u9020\u5546\u800c\u5f02\u3002<\/p>\n<h2 id=\"system-and-parts-involved\">\u6d89\u53ca\u7684\u7cfb\u7edf\u548c\u90e8\u4ef6<\/h2>\n<p>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u5728\u51b7\u542f\u52a8\u65f6\u5c06\u65b0\u9c9c\u7a7a\u6c14\u6cf5\u5165\u6392\u6c14\u6d41\u4e2d\uff0c\u4ee5\u5e2e\u52a9\u51cf\u5c11\u6392\u653e\u3002\u5173\u952e\u90e8\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5<\/li>\n<li>\u771f\u7a7a\u5207\u6362\u9600<\/li>\n<li>\u5355\u5411\u9600<\/li>\n<li>\u771f\u7a7a\u7ba1\u8def<\/li>\n<li>\u7535\u6c14\u7ebf\u8def\u548c\u7ee7\u7535\u5668<\/li>\n<\/ul>\n<p>\u8be5\u7cfb\u7edf\u901a\u8fc7\u6cf5\u5c06\u7a7a\u6c14\u6ce8\u5165\u6392\u6c14\u6b67\u7ba1\uff0c\u4e0e\u5bcc\u542b\u71c3\u6cb9\u7684\u5e9f\u6c14\u6df7\u5408\uff0c\u5141\u8bb8\u8fdb\u4e00\u6b65\u71c3\u70e7\u4ee5\u51cf\u5c11\u6392\u653e\u3002\u4f20\u611f\u5668\u76d1\u63a7\u6c14\u6d41\uff0c\u5e76\u5c06\u8bfb\u6570\u53d1\u9001\u81f3\u52a8\u529b\u603b\u6210\u63a7\u5236\u6a21\u5757\uff08PCM\uff09\u3002<\/p>\n<h2 id=\"common-causes\">\u5e38\u89c1\u539f\u56e0<\/h2>\n<p>P0491\u6545\u969c\u7801\u7684\u4e00\u4e9b\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5\u6545\u969c\u6216\u5835\u585e<\/li>\n<li>\u771f\u7a7a\u7ba1\u6cc4\u6f0f\u6216\u635f\u574f<\/li>\n<li>\u5355\u5411\u9600\u5361\u4f4f\u6216\u635f\u574f<\/li>\n<li>\u7ebf\u8def\u95ee\u9898\uff0c\u5982\u65ad\u8def\u6216\u77ed\u8def<\/li>\n<li>\u7535\u6c14\u8fde\u63a5\u6545\u969c<\/li>\n<li>\u7ebf\u8def\u7ebf\u675f\u635f\u574f\u6216\u8150\u8680<\/li>\n<li>PCM\u6545\u969c\uff08\u7f55\u89c1\uff09<\/li>\n<\/ul>\n<h2 id=\"diagnosis-steps\">\u8bca\u65ad\u6b65\u9aa4<\/h2>\n<p>\u8981\u6b63\u786e\u8bca\u65adP0491\u6545\u969c\u7801\u7684\u6839\u672c\u539f\u56e0\uff0c\u8bf7\u6309\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528OBD-II\u626b\u63cf\u4eea\u9a8c\u8bc1\u6545\u969c\u7801\uff0c\u5e76\u68c0\u67e5\u5176\u4ed6\u76f8\u5173\u6545\u969c\u7801\u3002<\/li>\n<li>\u76ee\u89c6\u68c0\u67e5\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u7684\u7ebf\u8def\u3001\u7ba1\u8def\u548c\u90e8\u4ef6\uff0c\u5bfb\u627e\u660e\u663e\u7684\u635f\u574f\u3001\u6cc4\u6f0f\u6216\u8fde\u63a5\u4e0d\u826f\u3002<\/li>\n<li>\u68c0\u67e5\u771f\u7a7a\u7ba1\u662f\u5426\u6709\u88c2\u7eb9\u3001\u626d\u7ed3\u6216\u6cc4\u6f0f\u3002\u4f7f\u7528\u771f\u7a7a\u8ba1\u6d4b\u8bd5\u771f\u7a7a\u662f\u5426\u6b63\u5e38\u3002<\/li>\n<li>\u4f7f\u7528\u4e07\u7528\u8868\u6d4b\u8bd5\u7535\u6c14\u7ebf\u8def\u548c\u8fde\u63a5\u5668\u662f\u5426\u6709\u65ad\u8def\u6216\u77ed\u8def\u3002<\/li>\n<li>\u6d4b\u8bd5\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5\u7684\u8fd0\u884c\u72b6\u51b5\uff0c\u6ce8\u610f\u662f\u5426\u6709\u5f02\u5e38\u566a\u97f3\u6216\u6c14\u6d41\u4e0d\u8db3\u3002<\/li>\n<li>\u68c0\u67e5\u5355\u5411\u9600\uff0c\u786e\u4fdd\u5b83\u4eec\u53ea\u5141\u8bb8\u7a7a\u6c14\u671d\u4e00\u4e2a\u65b9\u5411\u6d41\u52a8\u3002<\/li>\n<li>\u5982\u679c\u672a\u53d1\u73b0\u5176\u4ed6\u95ee\u9898\uff0cPCM\u53ef\u80fd\u5b58\u5728\u6545\u969c\uff0c\u4f46\u8fd9\u79cd\u60c5\u51b5\u8f83\u4e3a\u7f55\u89c1\u3002<\/li>\n<\/ol>\n<h2 id=\"repair-solutions\">\u7ef4\u4fee\u65b9\u6848<\/h2>\n<p>P0491\u6545\u969c\u7801\u7684\u7ef4\u4fee\u53ef\u80fd\u6d89\u53ca\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n<ul>\n<li>\u66f4\u6362\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5\uff08250-600\u7f8e\u5143\/225-550\u6b27\u5143\uff09<\/li>\n<li>\u66f4\u6362\u635f\u574f\u7684\u771f\u7a7a\u7ba1\uff0820-50\u7f8e\u5143\/18-45\u6b27\u5143\uff09<\/li>\n<li>\u66f4\u6362\u6545\u969c\u7684\u5355\u5411\u9600\uff0840-130\u7f8e\u5143\/35-120\u6b27\u5143\uff09<\/li>\n<li>\u4fee\u590d\u7ebf\u8def\u95ee\u9898\uff0850-200\u7f8e\u5143\/45-180\u6b27\u5143\uff09<\/li>\n<li>\u6e05\u6d01\u7535\u6c14\u8fde\u63a5<\/li>\n<li>\u66f4\u6362PCM\uff08500-1400\u7f8e\u5143\/450-1300\u6b27\u5143\uff09<\/li>\n<\/ul>\n<p>\u4eba\u5de5\u8d39\u7528\u901a\u5e38\u572880-140\u7f8e\u5143\/\u5c0f\u65f6\uff0870-130\u6b27\u5143\/\u5c0f\u65f6\uff09\uff0c\u8bca\u65ad\u548c\u7ef4\u4fee\u65f6\u95f4\u901a\u5e38\u4e3a2-4\u5c0f\u65f6\u3002\u603b\u7ef4\u4fee\u8d39\u7528\u901a\u5e38\u5728400-1200\u7f8e\u5143\/350-1100\u6b27\u5143\u4e4b\u95f4\u3002<\/p>\n<h2 id=\"prevention\">\u9884\u9632\u63aa\u65bd<\/h2>\n<p>\u4e3a\u4e86\u9632\u6b62\u51fa\u73b0P0491\u6545\u969c\u7801\uff0c\u8bf7\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u5b9a\u671f\u68c0\u67e5\u771f\u7a7a\u7ba1\u662f\u5426\u78e8\u635f\uff0c\u5e76\u6839\u636e\u9700\u8981\u66f4\u6362<\/li>\n<li>\u786e\u4fdd\u7535\u6c14\u8fde\u63a5\u5e72\u51c0\u4e14\u7262\u56fa<\/li>\n<li>\u53ca\u65f6\u5904\u7406\u4efb\u4f55\u76f8\u5173\u7684\u53d1\u52a8\u673a\u95ee\u9898<\/li>\n<li>\u9075\u5faa\u7a7a\u6c14\u548c\u71c3\u6cb9\u8fc7\u6ee4\u5668\u7684\u63a8\u8350\u7ef4\u62a4\u5468\u671f<\/li>\n<\/ul>\n<h2 id=\"associated-codes\">\u76f8\u5173\u6545\u969c\u7801<\/h2>\n<p>\u53ef\u80fd\u4e0eP0491\u4e00\u540c\u51fa\u73b0\u7684\u5176\u4ed6\u6545\u969c\u7801\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>P0492\uff08\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u6c14\u6d41\u4e0d\u8db3\uff0c\u6c14\u7f38\u7ec42\uff09<\/li>\n<li>P0411\uff08\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u6c14\u6d41\u4e0d\u6b63\u786e\uff09<\/li>\n<li>P0410\uff08\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u6545\u969c\uff09<\/li>\n<li>\u70b9\u706b\u5931\u8bef\u6545\u969c\u7801\uff0c\u5982P0300-P0308<\/li>\n<\/ul>\n<p>\u5f53\u51fa\u73b0P0491\u6545\u969c\u7801\u65f6\uff0c\u68c0\u67e5\u8fd9\u4e9b\u76f8\u5173\u6545\u969c\u7801\u6709\u52a9\u4e8e\u8bca\u65ad\u6839\u672c\u95ee\u9898\u3002\u53ca\u65f6\u4fee\u590dP0491\u95ee\u9898\u53ef\u4ee5\u907f\u514d\u8fdb\u4e00\u6b65\u7684\u635f\u574f\u548c\u66f4\u9ad8\u7684\u7ef4\u4fee\u8d39\u7528\u3002<\/p>\n<h2 id=\"frequently-asked-questions-about-p0491\">\u5173\u4e8eP0491\u7684\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3>P0491\u6545\u969c\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n<p>P0491\u662f\u4e00\u4e2a\u901a\u7528\u52a8\u529b\u603b\u6210\u6545\u969c\u7801\uff0c\u8868\u793a\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u5728\u6c14\u7f38\u7ec41\uff08\u5305\u542b1\u53f7\u6c14\u7f38\u4e00\u4fa7\uff09\u6c14\u6d41\u4e0d\u8db3\u3002<\/p>\n<h3>P0491\u6545\u969c\u7801\u6709\u591a\u4e25\u91cd\uff1f<\/h3>\n<p>\u867d\u7136P0491\u7684\u4e25\u91cd\u6027\u4e0d\u5982\u67d0\u4e9b\u6545\u969c\u7801\uff0c\u4f46\u5b83\u53ef\u80fd\u5bfc\u81f4\u8f66\u8f86\u5728\u884c\u9a76\u4e2d\u7184\u706b\uff0c\u5b58\u5728\u5b89\u5168\u98ce\u9669\u3002\u6b64\u5916\uff0cP0491\u5f88\u53ef\u80fd\u5bfc\u81f4\u8f66\u8f86\u5728\u6392\u653e\u6d4b\u8bd5\u4e2d\u4e0d\u5408\u683c\u3002\u56e0\u6b64\uff0c\u6700\u597d\u5c3d\u5feb\u8bca\u65ad\u5e76\u4fee\u590d\u8be5\u95ee\u9898\u3002<\/p>\n<h3>P0491\u6545\u969c\u7801\u7684\u5e38\u89c1\u75c7\u72b6\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u75c7\u72b6\u53ef\u80fd\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u53d1\u52a8\u673a\u6545\u969c\u706f\u4eae\u8d77<\/li>\n<li>\u51b7\u542f\u52a8\u65f6\u6020\u901f\u4e0d\u7a33\u6216\u7184\u706b<\/li>\n<li>\u6392\u653e\u589e\u52a0<\/li>\n<li>\u71c3\u6cb9\u6548\u7387\u964d\u4f4e<\/li>\n<li>\u6392\u6c14\u4e2d\u6709\u786b\u78fa\u6c14\u5473<\/li>\n<\/ul>\n<h3>P0491\u6545\u969c\u7801\u7684\u5e38\u89c1\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h3>\n<p>\u5e38\u89c1\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5\u6545\u969c\u6216\u5835\u585e<\/li>\n<li>\u771f\u7a7a\u7ba1\u6cc4\u6f0f\u6216\u635f\u574f<\/li>\n<li>\u5355\u5411\u9600\u5361\u4f4f\u6216\u635f\u574f<\/li>\n<li>\u7ebf\u8def\u95ee\u9898\uff0c\u5982\u65ad\u8def\u6216\u77ed\u8def<\/li>\n<li>\u7535\u6c14\u8fde\u63a5\u6545\u969c<\/li>\n<li>PCM\u6545\u969c\uff08\u7f55\u89c1\uff09<\/li>\n<\/ul>\n<h3>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u662f\u4ec0\u4e48\uff1f\u5b83\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/h3>\n<p>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u5728\u53d1\u52a8\u673a\u51b7\u542f\u52a8\u65f6\u5c06\u65b0\u9c9c\u7a7a\u6c14\u6cf5\u5165\u6392\u6c14\u6d41\u4e2d\uff0c\u4ee5\u5e2e\u52a9\u51cf\u5c11\u6392\u653e\u3002\u989d\u5916\u7684\u7a7a\u6c14\u5141\u8bb8\u5728\u5e9f\u6c14\u79bb\u5f00\u6392\u6c14\u7ba1\u4e4b\u524d\u8fdb\u4e00\u6b65\u71c3\u70e7\u672a\u71c3\u5c3d\u7684\u71c3\u6599\u3002<\/p>\n<h3>\u54ea\u4e9b\u8f66\u8f86\u901a\u5e38\u914d\u5907\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\uff1f<\/h3>\n<p>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u5e38\u89c1\u4e8e\u5965\u8fea\uff08Audi\uff09\u3001\u5b9d\u9a6c\uff08BMW\uff09\u3001\u4fdd\u65f6\u6377\uff08Porsche\uff09\u3001\u5927\u4f17\uff08Volkswagen\uff09\u7b49\u54c1\u724c\u7684\u8f66\u8f86\uff0c\u5c24\u5176\u662fV\u578b\u53d1\u52a8\u673a\u914d\u7f6e\u7684\u8f66\u578b\u3002\u5177\u4f53\u7ec4\u4ef6\u56e0\u5236\u9020\u5546\u800c\u5f02\u3002<\/p>\n<h3>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u7cfb\u7edf\u7684\u5173\u952e\u90e8\u4ef6\u6709\u54ea\u4e9b\uff1f<\/h3>\n<p>\u5173\u952e\u90e8\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5<\/li>\n<li>\u771f\u7a7a\u5207\u6362\u9600<\/li>\n<li>\u5355\u5411\u9600<\/li>\n<li>\u771f\u7a7a\u7ba1\u8def<\/li>\n<li>\u7535\u6c14\u7ebf\u8def\u548c\u7ee7\u7535\u5668<\/li>\n<\/ul>\n<h3>\u5982\u4f55\u8bca\u65adP0491\u6545\u969c\u7801\u7684\u6839\u672c\u539f\u56e0\uff1f<\/h3>\n<p>\u8bca\u65ad\u6b65\u9aa4\u5305\u62ec\uff1a<\/p>\n<ol>\n<li>\u626b\u63cf\u6545\u969c\u7801\u5e76\u8bb0\u5f55\u51bb\u7ed3\u5e27\u6570\u636e\u3002<\/li>\n<li>\u76ee\u89c6\u68c0\u67e5\u7ebf\u8def\u3001\u7ba1\u8def\u548c\u90e8\u4ef6\u3002<\/li>\n<li>\u4f7f\u7528\u70df\u96fe\u6d4b\u8bd5\u4eea\u6d4b\u8bd5\u771f\u7a7a\u7ba1\u662f\u5426\u6cc4\u6f0f\u3002<\/li>\n<li>\u4f7f\u7528\u4e07\u7528\u8868\u68c0\u67e5\u7535\u6c14\u8fde\u63a5\u3002<\/li>\n<li>\u6d4b\u8bd5\u4e8c\u6b21\u7a7a\u6c14\u55b7\u5c04\u6cf5\u7684\u5de5\u4f5c\u60c5\u51b5\u3002<\/li>\n<li>\u68c0\u67e5\u5355\u5411\u9600\u662f\u5426\u6b63\u786e\u5355\u5411\u901a\u6c14\u3002<\/li>\n<li>\u5982\u679c\u672a\u53d1\u73b0\u5176\u4ed6\u6545\u969c\uff0c\u53ef\u80fd\u662fPCM\u6545\u969c\u3002<\/li>\n<\/ol>\n<h3>\u6211\u53ef\u4ee5\u5728P0491\u6545\u969c\u7801\u672a\u4fee\u590d\u7684\u60c5\u51b5\u4e0b\u7ee7\u7eed\u9a7e\u9a76\u5417\uff1f<\/h3>\n<p>\u4e0d\u5efa\u8bae\u5728P0491\u6545\u969c\u7801\u6fc0\u6d3b\u7684\u60c5\u51b5\u4e0b\u957f\u65f6\u95f4\u9a7e\u9a76\u3002\u867d\u7136\u4e0d\u4f1a\u7acb\u5373\u9020\u6210\u635f\u574f\uff0c\u4f46\u6c14\u6d41\u4e0d\u8db3\u4f1a\u5bfc\u81f4\u6392\u653e\u589e\u52a0\uff0c\u5e76\u53ef\u80fd\u5bfc\u81f4\u7184\u706b\u3002\u5e94\u5c3d\u5feb\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/p>\n<h3>P0491\u6545\u969c\u7801\u4f1a\u5bfc\u81f4\u6211\u7684\u8f66\u8f86\u6392\u653e\u6d4b\u8bd5\u4e0d\u5408\u683c\u5417\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u5b58\u50a8\u7684P0491\u6545\u969c\u7801\u6216\u4eae\u8d77\u7684\u53d1\u52a8\u673a\u6545\u969c\u706f\u5f88\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