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- underground closed wall 地下闭合墙
- Considering modern drilling technology,the feasible types,characteristics and developing background of underground closed loop drilling system have beed analyzed synthetically in this paper. 根据现代钻井工程技术的发展规律,综述了井下闭环钻井系统的可行方案、主要特征及技术发展背景,给出了井下闭环钻井系统的分类和适用范围。
- Underground closed traverse with overhead crossing 井下交叉闭合导线
- underground closed traverse with crerhead crossing 井下交叉闭合导线
- Recently they have laid an underground pipeline. 最近他们铺设了一条地下管道。
- The missile is delivered from underground. 这种导弹由地下发射。
- They were suspected of underground activities. 他们被怀疑进行地下活动。
- He closed the deal successfully and was home free. 买卖成交了,他松了一口气。
- Moles stay underground most of the time. 钱鼠大部分时间住在地下。
- People say that the tiger is still lurk close to. 人们说那只老虎还躲在附近。
- He went underground to avoid capture. 他转入秘密工作以免被捕。
- The boss readily closed with the offer. 老板马上接受了这个报价。
- The cavers discovered a vast underground chamber. 探穴人发现了一个地下大洞穴。
- Have you closed the gate and windows? 你把门窗关严实了吗?
- He closed his speech with a funny joke. 他用一则有趣的笑话结束了演讲。
- The quickest way to go round the city is by underground train. 在这个城市四处走动最快的办法就是乘坐地铁。
- That oyster closed up its valves. 那个牡蛎把壳合拢起来。
- The mole bored (its way) underground. 鼹鼠在地下挖掘(路)。
- The prisoner escaped by digging an underground tunnel. 囚犯挖了一条地道逃跑了。
- She is buying a flat close to her office. 她正在购买一套靠近她办公室的单元房。