Sandstones are, as a rule , interbedded with shales.砂岩通常都与页岩互层.This paper presents the PDC bits with the satisfactory testing result in the multi - interbedded formation.介绍了一种复合式PDC钻头,该钻头在多夹层地层钻井施工中取得了较好的试验效果.A shale for...
医生准许我重新开始训练。I was given the all clear by the doctor to resume playing.应该准许他偶尔也轻松一下。He should be allowed the occasional treat.车辆准许进入，但是车位有限。Cars allowed, but parking is limited....
别担心. 鲸不吃小丑鱼, 他们吃磷虾.Don't worry. Whales don't eat clown fish, they eat krill.对于人口膨胀、食物短缺的当今世界,南极磷虾资源有着无限前景.Antarctic krillorganism of the marine ecosystem and a potential fishery resource.象所有甲壳纲, 磷虾必须蜕变为了增长.Like...
His description of what happened approximate d to the truth, but he still left a few details out.他叙述所发生的事近于实情, 但尚遗漏了几项细节问题.The truth is, I'm in one heck of a mess.事实上我麻烦大了。Sanctify them in the truth; Your word is tr...