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检具精度和被测要素的精度相差多少是合适的? |
点评
互换性与测量(俺没记错的话),的精度等级。国标。
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Archiver|手机版|小黑屋|机械社区 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
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