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- Press a Thick Wall Hemispherical Seal Head 一种厚壁半球形封头的压制
- XM-230/80 rotary seal head is a rotary seal unit on wellhead, specialized for negative pressure and low pressure drilling, characterized by reliable sealing effect, ease of opration and safe service. XM-230/80型钻井旋转密封头是一种专用于负压、低压钻井的井口旋转密封装置,具有密封可靠、操作简单和防爆、安全等优点。
- It takes only two to four irradiations to inspect a sealing head weld by using the technology. 使用这种方法，一般只需两到四次透照就能完成封头焊缝的探伤。
- She nestled her head on his shoulder. 她将头依偎在他的肩上。
- Police sealed off all the exits from the building. 警方把建筑物的所有出口都封锁住了。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉，以便保存肉汁。
- The putty gives a good seal round the window. 窗户四周泥的油灰密封效果很好。
- The computer disk is sent in a sealed container. 计算机软盘装在密封的盒里寄出。
- Our foil packets seal the flavour in. 我们用锡纸包装以保持原味。
- The deer lowered its head to drink from the pond. 鹿低下头去喝池塘里的水。
- He gave the little boy a clout on the head. 他在那小男孩的头部打了一下。
- I saw the small girl topple over and hit her head. 我看见那小女孩栽了一跤，碰着了头。
- This document carries the royal seal. 这份文件上盖有王室印章。
- The seal on the bottle has perished. 瓶子的封记已经腐烂。
- I was dazed by the blow on my head. 我的头挨了一击而觉得晕眩。
- She leaned her head back and whispered the news. 她向后仰着头，小声说出了这个消息。
- The horse kicked its fallen rider about the head. 那匹马乱踢从它背上掉下来的骑手的头部。
- The tube was sealed off by fusing the material together. 管子以熔合管端的方法封闭起来了。
- A price of $1000 was set on the jewel thief's head. 悬赏1000美元抓住这个珠宝窃贼。
- He impressed his seal on the wax. 他在火漆上盖了他的私章。
