Objective: to investigate the safety and superiority of blood drawing through an indwelling vein needle on in oral glucose tolerance test.
目的：观察静脉留置针采血应用在口服葡萄糖耐量试验中的安全性和优越性。
Cover mounting core locations exceeded the drawing tolerance and must be corrected. See attachments for details.
上盖底盘的核心位置超过了图纸允许的公差，必须要纠正，请看附件的细节。
Drawing the mechanical engineering drawing usually need to mark the dimension tolerance of the parts.
绘制机械工程图经常要标注零件的尺寸公差。
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