下阀杆上的螺纹是处在潮湿气流中的。
The threads on the lower valve stem are in the wetted gas stream.
下阀芯起开关作用。
下阀杆是被从阀座上物理地推开，而不是被弹簧举起来。
The lower stem is physically pulled away from the seat instead of being lifted away by the spring.
当上阀杆沿着它的螺纹上下运动时，通过机械连接带着下阀杆一起运动。
When the upper stem rides up and down on its threads it now moves the lower stem by a mechanical connection.
当手轮象开启位置旋转时，上阀杆离开横膈膜，弹簧推动下阀杆离开阀座。
When the handwheel is rotated toward the open position the upper stem is moved away from the diaphragms allowing the spring to push the lower stem away from the seat.
当手轮象开启位置旋转时，上阀杆离开横膈膜，弹簧推动下阀杆离开阀座。
The lower stem is encased in a spring which forces the stem away from the seat when the valve is opened.
清洗：检查或更换磨损的阀门阀瓣，断开控制管线，采用钝工具和锤打阀盖凸耳从阀体上旋下阀盖。
To CLEAN: Inspect or replace worn valve disc, disconnect control pipe and unscrew bonnet from valve body using blunt tool and hammer on bonnet lugs.
如果水箱没有充满正常水量(水箱内侧应该有一条水位线)，慢慢地弯曲一下浮囊阀，看水位会不会上升。
If the tank is not filling all the way (there should be a fill line on the inside of the tank), carefully bend the bulb of the float valve up a bit and see if the tank will fill.
他拿起一个榔头，在右侧挡泥板前弯下身，轻轻敲了两下废气循环阀。
He picked up a ball-peen hammer, leaned on the passenger-side fender, and tapped twice on the EGR valve.
停泵时先按下电控箱上泵的停止按钮(红色)，泵停止运转后，关闭管路上的进水阀和排出阀。
When the pump is going to stop, first press the stop button (Red), then close the water intake valves and the discharge valve.
之后打开采油树上面的阀以确保工具在存在压力的情况下能够下落，或者通过泵能够泵入。
Then the top valves of the tree are opened to enable the tools to fall or be pumped into the wellbore under pressure.
研究结果表明，在任意可变斜轴涡流控制阀轴线与曲轴轴线夹角情况下，流通系数和无因次斜轴涡流比随着阀片开度的增大而逐渐减小。
The results show that at any Angle between axes of inclined swirl control valve and crank shift, flow coefficient and inclined swirl ratio increase gradually with increase of valve opening.
在继续运作链可以跳转牙齿的驱动器上链轮或完全中断，与任何一种情况下造成的损害阀发动机活塞碰撞。
In continued operation the chain can jump a tooth on the drive sprocket or break entirely, with either case resulting in engine damage from valve-piston collisions.
标准的截止阀，虽然结构上适用于节流和关闭，但是不能在小于10%的开启度下长期节流使用。
Standard globe valves, because they are designed for both throttling and shutoff, should not be used for prolonged throttling at less than 10% open.
受管制的压力下保持稳定是通过不同的抽气管，可以调整与流速按照使用流量阀供应条件。
Stability of regulated pressure is maintained under varying flow conditions through the use of an aspirator tube which adjusts the supply valve in accordance with the flow velocity.
而在正常工艺条件下，调节阀的开度是适中的，即使小开度也是短暂的，所以调节阀可正常安全使用。
In normal conditions, the opening control valve is moderate, even a small opening is short, so the normal valve can be used safely.
这些部件是在压力下硫化并形成压力套管，这是夹管阀的心脏部分。
These parts are vulcanized under pressure to form a pressure-containing sleeve that is the heart of a Pinch Valve.
请勿操作和阀芯下满负荷连续超过一分钟。
Don't operate and spool under full load over one minute continuously.
最后，给出在83 %FP以下的功率运行下进行主蒸汽安全阀定值校验试验的窗口安排与注意事项。
Finally, scheduling and precautions for verification tests of the calibration pressure of main steam safety valve under 83 % FP power level are given.
本文基于解析冗余原理，提出用信号重构的方法来实现单个阀位传感器故障下的容错阀门管理。
This paper presents the fault tolerant strategy of valve management under the failure of valve opening sensor via signal reconstruction.
正常情况下，安装的截止阀要使得流体从阀瓣下端流进，但是，某些应用场合，流体从阀瓣上方流进可能更加有利。
Normally globe valves are installed with flow under the disc, but under certain conditions flow over the disc may have advantages.
持续30分钟1.5倍的最大静压与水锤压力下，对入口阀(带打开和关闭盘)的静水压试验。
Hydrostatic pressure testing of the inlet valves (with open and closed disc) under a pressure of 1, 5 times the maximum static pressure plus water hammer for 30 minutes.
注意不要在排出阀关闭的状态下长期运转。
Do not let pump run for long in the circumstance of discharge valve closed.
对入口阀在最大静水压力下的密封泄漏试验。泄漏量不得超过承包商所保证的量。
Seal leakage test on the inlet valve under a hydrostatic pressure equal to maximum static head. The leakage shall not exceed the amount guaranteed by the Contractor.
对入口阀在最大静水压力下的密封泄漏试验。泄漏量不得超过承包商所保证的量。
Seal leakage test on the inlet valve under a hydrostatic pressure equal to maximum static head. The leakage shall not exceed the amount guaranteed by the Contractor.
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