Backflow preventers 倒流防止器 ; 调节阀
Guy preventers & stoppers 止动索及止动器
Backflnow Preventers 倒流防止器
packoff preventers 封隔防护设备
blow-out ram preventers 闸板防喷器
以上来源于: WordNet
N a person or thing that prevents 妨碍者; 妨碍物
Full pressure test the ram preventers.
对闸板防喷器进行全压试压。
This valve is used on diverter systems and choke lines leading from the blow out preventers.
此阀用于分流系统和从防喷器引出的阻流管线上。
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。
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