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使用內(nèi)徑表(對表時)是用環(huán)規(guī)校準(zhǔn)比較好還是用外徑千分尺比較好 |
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點(diǎn)評
有個前提,千分尺和你所用的環(huán)規(guī)精度是一樣的話是這樣
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