s drill-rod s135钻杆
s drill pipe s135钻杆钢
woodworking carpenter ' s drill 木工钻床
phenix bench drill s 凰牌台钻
s shaped drill tip s刃钻尖
drill s protection 钻孔机保护
drill-rod s s135钻杆
drill ' s protection 钻孔机保护
The dentist 's drill made a lot of noise.
牙钻发出很大的噪音。
In order to meet the Tarim Oil Field 's demand for high toughness drill pipes, Baosteel has trial-produced ultra-low sulfur and phosphorus steel for drill pipes.
为了满足塔里木油田对高韧性钻杆的需求,宝钢试制超低硫低磷钻杆用钢。
Soldiers of Chinese navy special force carry out an anti pirate drill on the deck of DDG-171 Haikou destroyer in Sanya, capital of South China\s Hainan Province, on Dec. 25, 2008.
12月25日,在171舰“海口”号导弹驱逐舰的甲板上,威武的中国海军特战队员在军舰甲板上列队。
Chafee Aegis Destroyer,docked in South Korea as part of an annual joint military drill with the South's forces.
VOA: standard.2009.03.12
If you drill down at the level of molecules you see that it's not homogeneous.
如果你深入到分子层面上,你就会发现它是不均匀的。
So, that's the drill. But, again, that's up to you.
这是练习,但是,我告诉你们,这取决于你们。
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