查询词典 flutter valve

In order to optimize the spring of the reciprocating pump valve and establish the best spring factor matching, the unsteady opening-closing process of the poppet valve was simulated. The simulation based on computational fluid dynamics approach, and the dynamic-grid technology and User Defined Function was conducted to depict the law of motion of the poppet valve.

采用RNG k-ε湍流模型、动网格技术以及用户自定义程序，对往复泵泵阀的启闭过程进行了非定常数值仿真，得出了不同弹簧因素下、阀门从开启到关闭的过程中，阀芯的升程随时间的变化规律、阀的迟滞关闭时间以及阀芯落座的瞬时速度。

Kinematic and dynamic calculations are carried out, and the features of intake and outtake valve train are got. Especially, the area of fullness ratio of the valve lift curve, cam to tappet contact stress, lubrication coefficient and the features of valve seating are analyzed.

在此基础上分析了配气机构进排气部分的工作特性，着重从气门升程曲线的丰满系数、凸轮与平面挺柱间接触应力，凸轮与平面挺柱间润滑效果以及气门落座特性等方面进行了分析。

Ignition performance, off the performance, combustion gas proportional valve capacity is a measure of the performance level of the main technical indicators, namely the import and export mapping proportional valve pressure (P2-P2) performance curve, outlet pressure and coil current (P2-I) curve, current and flow curve, and the data of these curves is proportional valve performance testing gas key.

点火性能、熄灭性能、燃烧能力是衡量燃气比例阀性能高低的主要技术指标，截止阀即测绘比例阀进出口压力（P2-P2）性能曲线、出口压力与线圈电流（P2-I）曲线、电流与流量曲线，以及这些曲线有关数据，是燃气比例阀性能测试的关键。

It adopts a fully automated control system, and all control components are famous brands, including PLC and engineering control screen, steam pressure-reducing valve, regulating valve, by-pass valve, material pump and hot water pump.

采用全自动控制系统，控制元件均采用名牌产品，包括PLC程控器及工控屏、蒸汽减压阀、调节阀、分流阀、物料泵及热水泵。

Heating pipe valve explosion Citation Heating pipe valve explosion Citation Tianjin Pharmaceutical Co., Ltd. Qing Hua Hengsen pipe radiator valve damage caused explosion, security guards, members of the book rather selfless and courageous burst into the scene, so that three stranded women workers were rescued by the unit leadership this award.

Heating pipe valve explosion Citation ；是由上海天阀实业有限公司提供的阀门新闻，中文译文仅供参考上海天阀实业有限公司还生产电动执行器电磁阀电站阀门眼镜阀疏水阀及不锈钢法兰电磁阀，两口两位直动式电磁阀，锻钢加长端闸，ZCF塑料王电磁阀，ZQDF-A通用电磁阀，欢迎您的选购。

The project area has three shopping malls in a row not to fight the fire area, with a total length of the circumference of more than 1 / 3, Road fire engines from the inside edge of the wing wall construction materials to highlight the edge of not less than 5.00m, and fire engines to meet the Road Fire The largest car turning radius of 12m, to fight the fire site with a width of 18m, and this is not tall tree planting; and fire fighting facilities of not more than 5% of the slope, fire engines, fire fighting facilities should be able to carry a large set of fire engines Weight; Combined air-conditioning unit: for department stores, supermarkets, large bays, such as the lobby room, a new unit set up wind, ventilation and air return, setting up a new, back to the wind and the proportion of exhaust valve, according to the outdoor temperature of the new regulation, the ratio of air return, Back to the water main unit based PI control valve and in accordance with return air-conditioning temperature valve opening.

本项目商场三个面设有不连续消防扑救面，总长度大于周长的1/3，消防车道内边路缘距建筑外墙突出物边缘不小于5.00m，且消防车道满足消防车最大12m 的转弯半径，消防扑救场地的宽度为18m，且此范围内没有种植高大乔木；此外消防扑救场地的坡度不大于5%，消防车道、消防扑救场地应能承载大型消防车的载重量；组合式空调机组：用于百货商场、超市、大厅等大开间房间，机组设新风、回风及排风，设新、回风及排风比例调节阀，根据室外温度调节新、回风比例，机组回水管设比例积分调节阀并根据回风温度调节水阀开度。

Wenzhou Longwan Wing qian jia valve factory in the industrial zone in Wenzhou City Yongxing Yongchang on the 8th, is a specialized generation filters, Precision Casting Ball Valve and the closing of the valve manufacturer.

温州龙湾永中千加阀门厂位于温州市龙湾区永中镇衙前街8号，是一家专门生成过滤器、精铸球阀、截止阀的生产厂家。

This hand wheel rotates three full turns from closed to fully open. The flow capacity of this valve is much smaller than that of the wrench operated valve, therefore it may be desirable to open this valve fully.

这种阀门的流量比扳手型阀门的流量小得多，因此有必要彻底打开阀门。

It is not necessary or recommended to open this valve to the full open position. Always keep the valve wrench on or near the valve to facilitate rapid shut-down in case of problems.

总是把阀门扳手放在阀门上或阀门附近，以便在出现问题时能够迅速地关闭阀门。

Spring safety valve spring force and rely mainly on the work of another spring-loaded safety valve in the closed and not closed, generally flammable, explosive or toxic media should use closed, steam or inert gas used is not closed type, in the spring-loaded safety valve in there with a wrench and without wrenches.

弹簧式安全阀主要依靠弹簧的作用力而工作，弹簧式安全阀中又有封闭和不封闭的，一般易燃、易爆或有毒的介质应选用封闭式，蒸汽或惰性气体等可以选用不封闭式，在弹簧式安全阀中还有带扳手和不带扳手的。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。