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\u6839\u636e\u56fd\u6807\uff0c\u53cc\u5149\u773c\u955c\u68c0\u6d4b\u5e94\u6ee1\u8db3\u4ee5\u4e0b\u8981\u6c42\uff1a<\/p>\n\n\n\n
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\u53cc\u5149\u773c\u955c\u7684\u5b50\u955c\u7247\u9876\u70b9\u5728\u5782\u76f4\u65b9\u5411\u4e0a\u5e94\u4f4d\u4e8e\u4e3b\u955c\u7247\u51e0\u4f55\u4e2d\u5fc3\u4e0b\u65b92.5\uff5e5 mm\u5904\u3002\u4e24\u5b50\u955c\u7247\u9876\u70b9\u5728\u5782\u76f4\u65b9\u5411\u4e0a\u7684\u4e92\u5dee\u4e0d\u5f97\u5927\u4e8e1mm\u3002<\/p>\n\n\n\n
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\u3010\u4f8b\u3011 \u68c0\u6d4b\u7ed3\u679c\uff1a<\/p>\n\n\n\n
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\u4e24\u5b50\u955c\u7247\u9876\u70b9\u5728\u5782\u76f4\u65b9\u5411\u7684\u4e92\u5dee18. 5-18=0.5(mm)\u3002\u7b26\u5408\u4e24\u5b50\u955c\u7247\u9876\u70b9\u5728\u5782\u76f4\u65b9\u5411\u7684\u4e92\u5dee\u4e0d\u5f97\u5927\u4e8e1 mm\u3002<\/p>\n\n\n\n
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