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基本例句
n.妨碍者；妨碍物；预防者原型preventer的复数 The device that is attached to the blowout preventers during a frac job. Fluid and propping agent are pumped under pressure into the frac head and down the well.
在压裂作业期间装在防喷器上的装置。压裂液和支撑剂在压力下被泵入压裂头，并沿井向下流动。 www.infopetro.com.cn
The formation of the gas hydrate will change the drilling fluid property, plugging wellbore and annulus and blowout preventers.
天然气水合物的形成会改变钻井液的性质、堵塞井筒、环空及防喷器； cnki
The Series7 Backflow Preventers provide cost-effective backflow protection of the public water supply when used according to the local or state plumbing code requirements.
系列7防回流阀提供性价比高的、符合当地或州管道有关规定要求的公用水供应防回流保护装置。1718sh.com
The various ram blocks can be changed in the ram preventers, enabling the well team to optimize BOP configuration for the particular hole section or operation in progress.
闸板防喷器中不同的闸板块可以更换，能够使井队优化防喷器的外型，对于某一特殊的井眼部分或者作业进程。 www.infopetro.com.cn
To take apart, disassemble and otherwise prepare to move the rig or blowout preventers.
拆开、分解，准备移动钻机或者防喷器。 www.infopetro.com.cn
A strainer should be installed as shown, ahead of backflow preventers to prevent discs from unnecessary fouling.
应该如图所示在防回流阀前安装一个过滤器，防止阀瓣出现不必要的污垢。 iciba
Backflow preventers must be installed in high- visibility locations in order to allow for immediate notice of telltale discharge or other malfunction.
防回流阀必须安装在清晰可见的位置，以便能够立即注意到排放报警或其他故障。 bioon
Backflow preventers should never be placed in pits unless absolutely necessary and then only when and as approved by local codes.
除非绝对必要并且得到当地规程的批准，否则防回流阀不能放置在坑内。 h6688
Backflow preventers should never be placed in pits unless absolutely necessary and then only when approved by local codes.
除非绝对必要并经过当地规程的批准，否则绝不应该将防回流阀放置在坑内。 biodic
Designed to test pressure vacuum breakers, reduced pressure backflow preventers or double check valve assemblies, allowing you to eliminate both pressure and differential test gauges.
适用于检测压力真空断路阀，减压防回流阀或双止回阀总成，不再需要压力表和压差表。 h6688
Double check valve backflow preventers with a water meter and double check in by pass line.
双止回阀防回流阀配置一个水表和旁路管道上的双止回阀。 kuenglish
For years before Deepwater Horizon the oil industry planned on the basis that the blowout preventers on top of wells would live up to their name.
数年前石油工业深水地平线计划的井口封井器起码要无愧于他们的名声。 yayan123.com
If installed on a fire sprinkler system, all mechanical checks, such as alarm checks and backflow preventers, should be flow tested and inspected internally in accordance with NFPA13 and NFPA25.
如果安装在防火喷淋系统上，所有机械式止回阀，如警告止回阀和防回流阀，都应该根据美国国家消防协会 NFPA13和 NFPA25标准进行流量测试和内部检查。 h6688
Once you have determined that you need professional legal help, get it promptly. Lawyers should be thought of first as preventers of legal problems.
如果我们一旦决定的确需要专业的法律意见，应该第一时间想到律师，因为他们能够从一开始就避免部分法律问题的产生。 fyfz
One possible lesson of the disaster is the importance of improving blowout preventers— the devices atop wells that cut off gushing oil in emergencies.
这一事故所产生的教训之一可能是改善防止喷出装置的重视，这一装置可以在石油泄漏时紧急切断管路。 yeeyan
The following Test Procedure is one of several that is recognized throughout the United States for verification of the functioning of backflow preventers.
下列检测程序是几种美国公认的防回流阀功能检测程序之一。 h6688
The new drilling regulations are expected to require drillers to have independent operators certify that the blowout preventers work as designed to shut off the flow of oil;
新的钻探法规预计将规定钻探方要求独立勘探运营方保证防爆裂设施带有切断石油溢出功能； qeto
The preventer on the runaway well failed. Even before the disaster, the operators of many gulf rigs had switched to more advanced preventers, strengthening this last line of defense.
在石油管路破裂时切断管路，甚至在事故发生前操作者可以采用多个隔离部件来切断产生更多阻力，加强最后一道防线。 yeeyan
Two types of inhalers are used: “ relievers” which are used when breathing is difficult and“ preventers” which are taken every morning and evening.
吸入器有两种类型： 作为呼吸困难时使用的“缓解型”，和每日早晚常规使用的“预防型”。 treasure.1x1y.com.cn
When installing a drain line, use Series909 air gaps on Model909 backflow preventers.
在安装排泄管线时，在型号909防回流阀上采用系列909气隙。 h6688 |