启闭力,open and close force
1)open and close force启闭力
1.Analysis and calculation ofopen and close force and torque in flexible wedge gate valves;楔式弹性闸板闸阀启闭力及扭矩的理论计算和分析
2.Design and calculation ofopen and close force in orbit ball valves;轨道式球阀启闭力的设计计算
英文短句/例句
1.Study on Net Hydrodynamic Hoist Load Characteristics of High Head Lock Culvert Valves;高水头船闸输水阀门净动水启闭力特性研究
2.Physical Model Study on the Dynamic Loads and Flow-induced Vibration of Emergency Sluice Gate in Xiluodu Tunnel Spillway;溪洛渡水电站泄洪洞事故闸门启闭力及流激振动试验研究
3.normal margin of start-stop apparatus启闭设备的标准改正力
4.Close shutoff valves and open test cocks No. 2, 3 and 4 to relieve pressure from the body of the valve.关闭关闭阀，并开启测试旋塞2号、3号和4号，释放阀体内压力。
5.Knife Gate valves should preferably not be opened or closed against pressure.刀闸阀不适合顶着压力进行开启或关闭。
6.Dynamic Simulation of Gantry Hoist Based on Virtual Prototyping Technology;基于虚拟样机的门式启闭机动力学仿真研究
7.Analysis on Flow Force of the Hydraulic Poppet Valve with the Moving Cone Based on CFD;基于CFD的液压锥阀阀芯启闭过程的液动力分析
8.Close on actuation or release;Close on actuation;Close on release启动或释放时闭合;启动时闭合;释放时闭合
9.After shutoff valves are closed, open test cock#2,#3 and#4 to relieve pressure within the backflow assembly.在关闭了关闭阀后，开启测试旋塞2号，3号和4号，释放回流阀总成的压力。
10.Controlled closing of the valve, opens the mainline check valve, gradually increasing line pressure.阀门受到控制的关闭操作，开启主管线止回阀，逐渐增加管线压力。
11.Dynamic simulation research on miter gate operating machine based on virtual prototype technology基于虚拟样机的人字闸门启闭机动力学仿真分析
12.Modeling of virtual prototype of gantry crane based on ADAMS and dynamic simulation of hoisting condition基于ADAMS的门式启闭机虚拟样机建模及起升工况的动力学仿真
13.cycling sprinkler重复启闭喷水灭火系统
14.Activates/deactivates on screen menu (OSD)开启/关闭屏显菜单（OSD）
15.Tightness test(opening and closing test,emergency opening and closing test)for cargo hatch cover.货舱舱口盖密性试验（启闭试验、应急启闭试验）。
16.Fast-opening blind is applied in the circular hatch of pressure pipeline and pressure vessel, which can be opened and closed fast.快开盲板是用于压力管道或压力容器的圆形开口上并能实现快速开启和关闭的一种机械装置。
17.Internal stops provide positive over travel protection for power actuated valves and act as a reference to position the discs in the open and closed positions.内置的止动装置为动力执行机构提供行程保护，并且作为参考坐标在开启和关闭位置定位阀瓣。
18.Scientific controversy to push the progress of glaucoma practice--inspiration by the debate on the classification of primary angle closure glaucoma问题和争论是学科发展的动力——原发性闭角型青光眼分类争论的启示
相关短句/例句
the force of opening and closing闸门启闭力
3)lifting and downpull loads阀门启闭力
1.Based on the research results obtained from the observations of flow pattern in the valve region, well water level variation, cavitation characteristics of flow behind the valve,lifting and downpull loads and their fluc.通过对门区流态、门井水位、门后水流空化特性及阀门启闭力等的试验观测研究，得出三峡船闸中间级输水弧形阀门采用正向布置是可行的，且与反弧门布置相比，有其独特的优点。
4)net hydrodynamic hoist load净动水启闭力
5)engaging pressure启闭压力(阀门)
6)switch pressure of relay继电器启闭压力
延伸阅读
闸门启闭力闸门启闭力hoisting capacity of gatezhamen qibiliI’@门启闭力(hoisting eapaeity of gate)开启、关闭或保持闸门在一定开度时所需的力。影响启闭力的因素有:门叶和附加物(包括加重块、平衡重、吊杆等)的重量，作用在门叶上的水荷载(包括静水压力、动水压力、门后可能出现的负压力，其方向可分解为水平的、铅直的或径向的和由它产生的摩擦阻力)，以及门叶移动时的惯性力等。由于启闭力关系到闸门运行的可靠性，对这些因素必须仔细分析计算。考虑到各项影响因素的不确定性，计算时，可按照规范分别给以不同的安全系数。一般来说，门叶和附加物的重量比较容易计算确定，可取用较小的安全系数;惯性力一般较小，往往可以略而不计;摩擦阻力和动水压力则较难精确计算，应取用较大的安全系数。摩擦系数一般取静摩擦数值，并应适当考虑随时间的变化。动水压力在必要时要通过模型试验确定。计算启闭力时，对有些闸门，如弧形闸门，应绘制启闭力与闸门开度的关系曲线，并选取最大的启闭力作为选定启闭机的依据。(夏念凌)
