设计合理，结构紧凑，启闭迅速。
Reasonable design, compact structure, opening and closing fast.
炉门的启闭是通过手动来进行的。
阀杆上的短梯形螺纹适用于快速启闭操作。
Stub acme thread on stem provides rapid open-close operation.
闸阀通常用于启闭应用场合，不建议用于节流应用。
Valve typically used for opening and closing applications, not recommended for throttling applications.
行程控制机构，用以调节和准确控制阀门的启闭位置。
Stroke control mechanism for the regulation and precise control of valve opening and closing position.
本闸阀暗转在介质为水的管路上，作为启闭设备使用。
These gate valves are ideal for closing and opening the flow in water pipelines.
介绍船闸人字门液压启闭机油缸的一种有限元计算方法。
FEM computing technique for hydraulic hoist cylinder of lock miter gate is introduced.
卫生器具的给水配件应完好无损伤，接口严密，启闭部分灵活；
Water supply fittings of sanitary appliance should be complete with no damage, tight joint and be flexible to open and close.
手操机构：自动控制在不正常情况下可以手动操作阀门的启闭。
HART institutions: automatic control under normal circumstances you can not manually open and close the valve.
最后，对整个启闭台混凝土结构提出了评估结论和缺陷处理意见。
Finally the assessment result and the opinion of defects treatment for the whole crane platform concrete structure were given out.
水电站龙门起重机：主要用来吊运和启闭闸门，也可进行安装作业。
Hydropower Station Gantry Crane: mainly used for lifting and opening and closing gates, but also the installation.
以开发的门式启闭机变型设计平台为例，对提出的方法进行了验证。
The variant design platform of sluice gate gantry crane was developed, and as an example, methods were applied and verified.
车门上的任意点在启闭过程中始终作平行移动，因此其设计具有特殊性。
Because any point on the door is always in translational motion when the door is opening or closing, so the design of the door has its own specificity.
沙溪口表孔弧门是我国第一个采用斜拉式双缸液压启闭机操作的水电站。
Shaxikou Spillway Segment Gate is the first hydraulic Power Station controlled by skew axis double drum hydraulic hoist in our country.
阀体伸缩器只作用于方便阀门本身的启闭，不能代替管道中应设有的伸缩器。
The valve body expansion pipe is only used to open or close the valve, but can not replace the expansion pipe in the pipe.
启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。
Headstock piece on media flows and forces open or closed to prevent backflow valve media called a non-return valve.
在原有螺杆式、卷扬式和液压式启闭机的基础上，设计研制了齿销式启闭机。
On the basis of original screw type, winding type and hydraulic type Headstock, a kind of dentate annul headstock is designed and manufactured.
介绍了一种适用于球阀、蝶阀和旋塞阀双轨道旋转和升降复合动作的启闭结构。
A type of dual slots helix hoisting composite valve switch mechanism which is suitable for ball valves, butterfly valves and plug valves is introduced.
采用高平面度、耐磨损、耐腐蚀的端面密封片启闭，密封性能好，使用寿命长。
S adopts high flatness, wear resistance, corrosion resistance of end face sealing piece on-off, sealed performance is good, long service life.
三峡工程泄洪深孔弧形门液压启闭机是三峡工程宣泄和调控洪水最重的启闭设备。
The hydraulic hoist of tainter-gate of TGP's flood discharge deep outlet is the most important hoisting device for flood discharge and regulation of TGP.
阀门的启闭位置由行程开关控制，且阀板上设有限位挡块以保证阀板的启闭位置。
There is limit block on the valve disc to ensure the open-close position , which is controlled by the stroke switch.
采用薄膜式气缸替代活塞式气缸，排除了活塞环易损漏而导致无法启闭阀门的弊端。
Adopt film cylinder in place of piston cylinder, which remove the abuse that piston ring is easily damaged and lead to not open or close valve.
球阀是带圆形孔的球体作启闭件， 球阀球体随阀杆转动， 针阀以实现启闭动作。
The valve's disc is ball with hole and driven by stem to open and close.
VTLEBUF 01型电动高真空蝶阀是以电动装置驱动阀杆与阀板执行启闭动作。
VTLEBUF01 electric high vacuum butterfly valve USES electric device to drive the stem disc to perform open close action.
本装置由人力操作手轮，通过锥形齿轮等减速传动，直接驱动阀门阀杆上下移动，启闭阀门。
The device by the human operator launches, such as through the cone-shaped gear reducer drive, direct drive valve stem up and down movement of the valve gate.
谐波螺旋式阀门采用双波谐波螺旋传动，实现由圆周运动向直线运动的转化，实现阀门的启闭。
The harmonic screw type valve is driven by the double wave harmonic screw. It can transform circle movement to line movement for the closing and opening of the valve.
用这种位移传感器可方便地实现液压启闭机的位置控制和双缸同步控制，并具有很高的控制精度。
The position control and synchronous control of double cylinders on hydraulic hoist can easily be achieved by adoption of this sensor, with high precision.
密封严密，耐氯根腐蚀，介质的结疤、结垢不影响启闭，这是费希尔纯碱专用蝶阀的最显著特点。
The sealing is tight, and can resist corrosions by chloride radical. Scaring and scaling not influence opening and shutting is the special feature of eccentric valve special for soda.
对常压热水供热锅炉房的循环泵、回水自动启闭阀、膨胀水箱、大气连通管的设计选型进行了探讨。
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.
针对辽河油田蒸汽吞吐油井存在气锁、出砂、后期油稠泵效降低的状况，研制了强启闭柱塞抽油泵。
A forced-closing-and-opening plunger pump is developed to solve the problems of gas lock and sand inflow and low pump efficiency in steam injection Wells.
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