设有防止液压管路破裂的安全保护阀。
Provided to prevent hydraulic line rupture safety protection valve.
设有防止液压管路破裂的安全保护阀。
Safety protective valve for preventing hydraulic pipeline rupture.
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。
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.
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