The 500 vacuum damage valve of Gezhouba hydro-generating unit starts frequently during the unit starting and shutting down.
葛洲坝水轮发电机组500真空破坏阀在机组开、停机运行过程中会频繁启动,迅速地通过开启和关闭阀门对机组补气,这样,在阀门动作过程中会造成阀盘与阀座频繁撞击,对真空破坏阀破坏极大,检修中经常发现阀盘变形现象,甚至出现机组在运行中阀轴断裂造成水淹水导的严重事故。
air admission valve
进气阀,真空破坏阀
The vacuum check valve cannot be repaired and, if faulty or damaged, it must be replace
真空逆止阀是不可维修的，如果有故障或损坏，必须更换它。
The vacuum valve opens to admit air.
真空阀开启以补充空气。
For use with backflow preventer test cocks to protect from damage.
用于防回流阀测试旋塞，防止受到破坏。
vacuum advance control valve
真空点火提前控制阀
Diverter valve vacuum supply hose
紧急控制阀的真空管
Connect vacuum line to EGR valve.
将真空管路连接到EGR阀。
magnetostriction cavitation damage test
磁致伸缩空泡破坏试验
Nietzsche ruined the light and created the total emptiness in the inner world of him and his followers.
尼采破坏了光明并且在他和追随者内在创造出真空。
Experimental research on damage of dielectric materials under high power microwave in vacuum
真空中高功率微波下介质材料击穿破坏的实验研究
This is an insulated, vacuum-jacketed, pressure vessel. They are equipped with pressure-relief valves and rupture disks to protect the cylinders from pressure build-up.
这是一个隔热的有真空夹层的压力容器。它们配备有减压阀和破裂盘，以保护钢瓶，防止压力积累。
Damage cause of lower supporting beam for lock's valve
船闸输水阀门下层支承梁破坏原因分析
The vacuum system consists of vacuum pumps, vacuum pipelines, vacuum valves and vacuum measurers.
真空泵、空管道、空阀门和真空测量头组成了真空系统。
There can be no shutoff valves downstream of an AVB.
在大气真空断路阀的下游不能有关断阀。
Care should be taken for clearance as the stem rises so that threads are not damaged.
当阀杆上升时,要留心阀杆的上方有足够的空间,防止螺纹受到损坏。
Relief angle valve. Pressure or vacuum can be specified.
安全角阀。可指定压力或真空度。
vacuum and spring operated EGR valve
真空和弹簧控制型废气再循环阀
The canister vapor-vent value is operated by vacuum.
活性炭罐蒸气排泄阀是由真空控制的。