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class=\"wp-image-17321\"><\/figure>\n\n\n\n<p>\u8fd9\u4e9b\u8868\u683c\u663e\u793a\uff0c\u8d77\u91cd\u673a\u7684\u4f7f\u7528\u5bff\u547d\u4ee5\u603b\u8fd0\u884c\u5faa\u73af\u6b21\u6570\u8868\u793a\u3002\u5b83\u53d6\u51b3\u4e8e\u8d77\u91cd\u673a\u7684\u4f5c\u4e1a\u7b49\u7ea7\u4ee5\u53ca\u5178\u578b\u8d77\u540a\u8f7d\u8377\u4e0e\u989d\u5b9a\u8d77\u91cd\u80fd\u529b\u7684\u6bd4\u503c\u3002\u94f8\u9020\u8d77\u91cd\u673a\u901a\u5e38\u5904\u7406\u63a5\u8fd1\u6216\u7b49\u4e8e\u989d\u5b9a\u8d77\u91cd\u80fd\u529b\u7684\u8f7d\u8377\uff0c\u56e0\u6b64\u5176\u8f7d\u8377\u8c31\u7b49\u7ea7\u901a\u5e38\u4e3a Q4\uff0c\u4f5c\u4e1a\u7b49\u7ea7\u901a\u5e38\u4e3a A7\u3002\u5bf9\u4e8e Q4 \u548c A7\uff0c\u8868 3 \u7ed9\u51fa\u4e86\u5229\u7528\u7b49\u7ea7 U5\u3002\u8868 2 \u5219\u7ed9\u51fa\u4e86\u603b\u8fd0\u884c\u5faa\u73af\u6b21\u6570\u8303\u56f4\u4e3a 2.5 \u00d7 10\u2076 \u6b21\u3002<sup>5<\/sup> \uff1c CT \u2264 5 X 10<sup>5<\/sup>.<\/p>\n\n\n\n<p>\u5076\u5c14\u6216\u9891\u7e41\u7684\u8fc7\u8f7d\u4f1a\u663e\u8457\u51cf\u5c11\u603b\u8fd0\u884c\u5468\u671f\u6570\u3002<\/p>\n\n\n\n<p>\u4e3e\u4f8b\u6765\u8bf4\uff1a\u4e00\u53f0\u7528\u4e8e\u8f6c\u7089\u88c5\u6599\u7684A7\u578b\u94f8\u9020\u8d77\u91cd\u673a\u5168\u5e7424\u5c0f\u65f6\u4e0d\u95f4\u65ad\u8fd0\u884c\uff0c\u6bcf\u5e74\u8fd0\u884c330\u5929\u3002\u5269\u4f59\u768435\u5929\u7528\u4e8e\u5e74\u5ea6\u5927\u4fee\u548c\u7089\u819b\u68c0\u67e5\u3001\u65e5\u5e38\u7ef4\u62a4\u4ee5\u53ca\u4e34\u65f6\u7ef4\u4fee\u3002<\/p>\n\n\n\n<p>\u6839\u636e\u8be5\u6807\u51c6\uff0c\u6574\u673a\u9002\u7528\u7684\u6700\u9ad8\u4e24\u4e2a\u7b49\u7ea7\u4e3a U6\u3001Q3\u3001A7\uff08\u4e3b\u8d77\u5347\u673a\u6784\u4e3a T6\u3001L3\u3001M7\uff09\uff0c\u6574\u673a\u9002\u7528\u7684\u6700\u9ad8\u4e24\u4e2a\u7b49\u7ea7\u4e3a U5\u3001Q4\u3001A7\uff08\u4e3b\u8d77\u5347\u673a\u6784\u4e3a T5\u3001L4\u3001M7\uff09\u3002<\/p>\n\n\n\n<p>U6 \u7684\u76f8\u5e94\u603b\u8fd0\u884c\u5468\u671f\u4e3a 500,000\u20131,000,000\uff0cU5 \u7684\u76f8\u5e94\u603b\u8fd0\u884c\u5468\u671f\u4e3a 250,000\u2013500,000\u3002<\/p>\n\n\n\n<p>\u6bcf\u5c0f\u65f6\u8fd0\u884c\u516d\u4e2a\u5faa\u73af\uff0c\u9884\u8ba1\u8bbe\u8ba1\u5bff\u547d\u4e3a 12 \u5e74\u3002<\/p>\n\n\n\n<p>Cr = 6 \u00d7 24 \u00d7 330 \u00d7 12 = 570,240 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