... digital laser beam deflector 数字激光束偏转器 digital length-gauge 数字测长计 digital level adjuster 数字调平仪 ...
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digital l length-gauge 数字测长计
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The special gauge blocks for testing digital calipers are length measuring standards, mainly used for testing the indication error of digital calipers, with grade 2 and grade 3 accuracies.
数量卡尺检定专用量块是一种长度计量基准，主要用于数显卡尺示值误差的检定，精度分为2、3级。
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