air drill formation 编队飞行训练
formation drill 队列训练 ; 队列教练
drill in formation 为某种需要而练习排列或变换队形 ; 练队
rank and formation drill 队列队形练习
There is no plausible instinct, for example, that could impel a man to leave home, cut his hair short, and drill for hours in tight formation.
但在这些过程中并没有什么看似合理的本性能够驱使人们去做那些特定的事情,比如说离开家乡,剪短头发,然后时时刻刻都在密集的队形里操练着。
To bring forward relatively drillability conception to different drill bit style contemporary, and build they way to predict formation drillability by earthquake wave rate.
同时针对不同钻头类型提出地层相对可钻性的概念,并建立地震层速度预测地层可钻性的方法。
We use analyzed results of drill cores and median grain diameter to compute bound water saturation of formation.
利用钻井取心分析化验结果和粒度中值,计算地层束缚水饱和度。
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