Taking an old standard drill like single arm, and turning it in to a set, can force swimmers to think and discover.
以一个旧标准的单臂演习，并约定俗成，能强迫游泳者去思考和探索。
Experimental results show that the thrust of such a drill is decreased by about 40% as compared with that of a standard drill and the torque by about 20%.
实验表明，这种麻花钻的轴向力较普通麻花钻降低40%左右，扭矩降低20%左右，是一种切削力小、能耗低的麻花钻。
We can provide various types of drill pipe joints as customer's demand. All mechanical properties are beyond API standard.
我公司可按用户的要求提供各种型号的钻杆接头。各项力学性能均完全超过API标准要求。
This paper mostly studies the spiral configuration of the country standard twist drill concretely.
本文主要对国家标准麻花钻螺旋的结构作具体分析和研究。
The standard pipe rack configuration for this drill consists of a long pipe cradle that is fastened to a pair of parallelogram- type swing arms.
本钻机的标准管架配置由一个长管道托架组成，该托架被固定在两个平行四边形的旋臂上。
It makes analysis and comparison to several possible operation method of drill rig to determine its safety operation standard.
本文针对钻机的几种可能的运行方式分析比较，以确定较安全的运行规范。
Working with Fran Crippen showed us a great breathing drill mixed into an old standard.
弗兰·克里平的工作表明，我们进入了一个伟大的旧标准混合呼吸演习。
It contrasts the relation between the strength gotten under the standard curing condition, the strength gotten by drill, some putative strength and the strength gotten under the same curing condition.
文章对比了标准养护强度、钻芯强度以及各种推定强度与同条件养护强度的关系。
Can be drilled out with standard oilfield drill bits or can withstand perforation.
可被油田标准钻头钻穿，同时能够承受射孔压力；
As in the standard underwater breaststroke kick drill, keep your eyes down and watch the tiles to make sure they don't come to a stop.
这是一个标准的水下蛙泳踢腿练习，因此你的眼睛要向下看，看着水底的瓷砖以确定你没有停止滑行。
As in the standard underwater breaststroke kick drill, keep your eyes down and watch the tiles to make sure they don't come to a stop.
这是一个标准的水下蛙泳踢腿练习，因此你的眼睛要向下看，看着水底的瓷砖以确定你没有停止滑行。
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