查询词典 circulations

It is known that exact calculation of formation pressure is significant not only for the proper and costeffective selection of drilling fluid properties, but for the prevention of drilling problems like blowouts, lost circulations and well caving.

地层压力的准确计算对于合理、经济地选用钻井液性能，防止井喷、井漏、井塌等复杂钻井情况的发生具有重要意义。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。