当钻井下沉时，海底立管在顶部附近破裂，另一端还连在防喷阀上。 在随后的倒塌中，它像脆饼一样弯曲。
When the rig sank, the riser broke near the top while remaining attached to the blowout preventer at the bottom, bending itself like a pretzel in its subsequent collapse.
拆卸阀罩顶部的两个螺丝，然后拆卸阀罩。
阀门的优点：用金属横膈膜代替人造橡胶衬垫在阀门和阀杆的顶部机件处给予了这种阀门出众的泄漏完整性。
Valve Advantages: The replacement of elastomeric packings by metal diaphragms gives this valve superior leak integrity at the top works of the valve and stem.
顶部排汽阀的开度应调控，以保持连排内的工作压力。
The top steam discharge valve discharge distance could regulate to maintain the working pressure.
阀杆也应该在顶部配置方向指示器，用于当手柄拆卸下来时指示阀瓣的位置。
The shaft also shall have a directional indicator on top to indicate disc position when the handle is removed.
对于固定式储罐，建议采用储罐顶部水漫流冷却和固定水炮相结合的方式，同时应设置大小合适的安全阀；
Water overflow in the top of tank combined with fixed water gun is suitable for fixed storage tank, and the safe valve with appropriate size shall be set simultaneously.
顶部的连接端口可以用于压力表，安全阀，等等。
在阀芯杆的顶部上车有丝扣以便与首轮机构相配合。
In the spool bar to the top of the car have threaded bodies with the first round match.
安装到瓶帽孔顶部的阀的特征在于：它具有小通风帽（3），该帽容 纳倒转的柔性容器（4）。
A valve attached to the top of the cap port is characterised in that it has a small ventilated cap (3) housing an upside-down flexible vessel (4).
稍微开启关闭阀1号，将水注入管子直到顶部为止，然后关闭1号关闭阀。
Slightly open shutoff valve No. 1 and allow water to fill the tube to the top then close No. 1 shutoff.
冷却时未冷凝的燃料蒸汽通过位于腔室顶部的浮动针阀可以从腔室中逸出。
Fuel vapor that is not condensed as a result of cooling can escape from the chamber through a float needle valve at the top of the chamber.
AP真空破坏阀安装在容器罐上或者管道上方起吸气破坏真空的作用。它安装在容器罐的顶部或者管道上方。
The HX-AP VACUUM BREAKER VALVE is mounted on top of a section of containers or pipes, functioning to break the spacial vacuum inside.
在腔室顶部还有一个压力释放阀，当达到腔室内预定的内部压力时，压力释放阀可释放蒸汽。
A pressure relief valve is also provided at the top of the chamber to allow the vapor to escape when a predetermined internal pressure is reached.
液压安全阀安装在油罐顶部，与呼吸阀并列使用，在呼吸阀失灵时起安全作用。
Hydraulic safety valve series shall be installed on the top the center of the tank, in order to withstand the damage to the tanks caused by operating failure of breather valve.
液压安全阀安装在油罐顶部，与呼吸阀并列使用，在呼吸阀失灵时起安全作用。
Hydraulic safety valve series shall be installed on the top the center of the tank, in order to withstand the damage to the tanks caused by operating failure of breather valve.
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