查询词典 preventer

The main feature of the annular preventer (Fig. 2), sometimescalled s'universal" or "bag''-type BOP, is the capability to close and seal on almost any size tools in the borehole-drillpipe, tooljoints, drill collars, kellys, easing, etc.-within most of its range, It also has the capability to seal off the open hole, The heart of the annular preventer is the sealing element Fig.

环型BOP's 环型防护设备的The主要特点(图2)， sometimescalled s'universal&或者&bag''-type BOP，是关闭的能力，并且在几乎任何大小工具的封印在钻孔钻杆、钻具接头、钻环， kellys，缓和等等-在大多数它的范围之内，它也有封锁的能力开放孔，环型防护设备的心脏是密封件(图3)。

The new HP package contains quality Watts components … including the new AS-B Bronze Air Scoop and the B911S Combination Bronze Fill Valve and Backflow Preventer.

最新的HP组件包内含优质的美国瓦茨部件，包括：新型AS-B青铜导气罩和B911S青铜进水阀和防倒流装置组合件。

And then, the mathematics model was firstly set up to analyze the force that the rotary control head endured when the preventer installed aslant.

并在此基础上通过建立力学数学模型完成旋转控制头在安装偏斜的情况下的动力学分析。

In a word, this paper designed the XK35-17 rotary control head to solve the problems existing in the using of the rotary control head homemade, such as excessively abrasion and lapse early. The loads caused by the aslant installing of the preventer system were calculated.

总之，本文完成了XK35-17型旋转控制头的研制，解决了现场旋转控制头旋转密封装置存在的早期过量磨损或早期损坏的问题，计算了由于防喷器系统安装偏心摘要引起的侧向力，为轴承的选用提供了理论依据。

Including an auxiliary line consisting of an approved backflow preventer and water meter.

包括一个辅助管线，由一个通过认证的防回流阀和水表构成。

The assembly shall include an auxiliary bypass line consisting of an approved backflow preventer and water meter.

这种总成应该包括一个由通过认证的防回流阀和水表构成的辅助旁路管道。

The auxiliary line shall consist of an approved backflow preventer and water meter.

辅助管路应该由通过认证的防回流阀和水表构成。

The 957 and 957RPDA backflow preventer should be tested by a certified tester at the time of installation.

在安装期间，957和957RPDA防回流阀应该由有资格证书的检验员进行检验。

Annual inspection is required of the strainer and the backflow preventer to insure proper operation of the device.

要求对过滤器和防回流阀进行年度检查，以确保装置的性能正常。

Can be temporarily removed for replacement of the backflow preventer without the need for replacement of freeze protection services.

可以暂时性拆卸，在不需要更换防冻装置的情况下，便于更换防回流阀。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。