废品：目测不合格或尺寸超差并且无法修复的产品；无法达到图纸公差要求的产品。
SCRAP : When product that is either visually or dimensionally out of tolerance and can not be repaired; product that does not conform to blueprint tolerances.
根据机加工图纸提供和评估报价，执行采购程序达到使用者要求。
Evaluate quote upon mechanical drawing, run purchasing process to meet user's requirement.
介绍了一种自动换向装置，使用该装置后，磨削出的零件达到了图纸要求。
The article introduces one kind of automatic reverse devices. After using this equipment, the components meet the blueprint's request.
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