centre punch mark 定中心点
prick punch mark 中心点记号 ; 定中心点
mark sensing punch 符号读出穿孔机
mark-sense punch 符号打孔 ; 读标记穿孔 ; 标记读出穿孔
mark sense punch 标示感测打孔
mark-sensing punch card [计] 标记读出穿孔卡片 ; 标记读出穿孔卡
Draw the contour of each bracket in the steel sheet, mark the holes with a punch marker, cut.
托架是利用不锈钢片做成的,这一个材料非常黏性大,而且你将会需要使钻头尖锐良好的挖电洞,使比直径。
Donovan and Dempsey had efforts on goal which helped their side relieve the pressure just after the hour mark, but on both occasions Julio Cesar was there to punch the ball away.
就在下半场比赛过了十五分钟之后,多诺万与邓普西为进球的努力减轻了美国队的压力,但两次都是塞萨尔拍马赶到将球封出。
Temporarily tape a template to the control panel and use a center punch to mark the drill holes and insure that their location does not wander during drilling.
暂时磁带模板,控制面板,并使用中心的力度,以标志孔和保证他们的位置不徜徉在钻井过程。
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