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20*40矩形管長(zhǎng)600,設(shè)計(jì)一個(gè)機(jī)構(gòu)測(cè)量其長(zhǎng)度誤差控制在0.1以內(nèi) |
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點(diǎn)評(píng)
0.1是測(cè)量機(jī)構(gòu)的測(cè)量精度
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