... check-valve hole liner 止回阀孔衬圈 hole count check 计孔检验; 孔数检验 oil check hole 检油孔 ...
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对钻孔精确度，孔径，孔数量，孔位与铜箔表面确认，是否有相应的检验程序？
Is there a general inspection procedure with Drilling accuracy Hole size Hole quantity Hole location and Copper surface appearance defined?
每轴底部的板子是否检验其孔尺寸，孔位，孔对准度与孔数量等？
Are output boards at the bottom of each spindle inspected on the hole size & location, hole registration and hole quantity etc?
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