查询词典 flutter valve

The total and of the pitot tube were measured when the opening of the regulating valve was changed with keeping the flowrate fixed as well as unchanged the opening of the regulating valve with invariable flowrate. Then, the dynamic pressure signals were analysed with the method of PSD after computed and normalized and a better result of frequency-domain distribution was obtained. In addition, the average energy was defined and used for the analyzing of disturbance signals of regulation valve.

首先利用皮托管对相同流量不同开度及相同开度不同流量下的总压及静压信号进行测量，然后经过计算得到动压信号并进行归一化处理；其次，对归一化处理后的动压信号进行功率谱分析，取得了较好的频域分布结果；同时定义了信号的平均能量，并将其应用到了调节阀扰动信号的分析中。

If conditions in the middle gate opening, the valve plate because it is by both sides of the guide support, GLOBE VALVE all closed with the close, while the middle position, the valve plate and the rail vibration caused by a large gap.

闸阀工况若处在中间开度，疏水阀阀板因为是靠两侧的导轨支撑，全闭时配合紧密，而中间位置时，阀板与导轨间隙大而产生振动。

In the valve, the valve flap and valve seats are usually based on the plunger principle of design.

在该阀门中，阀瓣和阀座通常是基于柱塞原理设计的。

In the valve, the valve flap and valve seat are usually designed based on the plunger principle.

在该阀门中，阀瓣和阀座通常是基于柱塞原理设计的。

Can be added valve positioner to achieve valve position monitoring and feedback to enhance control valve performance.

可添加阀门定位器，实现阀位检测和反馈，提高控制阀性能。

If using digital locator precision by increasing the control valves to improve valve control performance, successful applications have if ND800 digital positioner for rotary control valves, we can make a variable range of process parameters increased by 50%, and then with the the characteristics of control valve valve positioner of the electronic properties of the match to further improve the control performance.

如采用数字定位器通过提高控制阀的精度来提高阀门的控制性能，成功的应用有如果将ND800数字定位器用于旋转控制阀，就能够使工艺参数的可变范围提高50％，再通过与控制阀的特性阀门定位器的电子特性的匹配来进一步提高控制的性能。

Pressure control valve with pressure reducing valve, safety valve and the sequence of three kinds of valves.

压力控制阀有减压阀、安全阀和顺序阀三种。

OBJECTIVE: To investigate the efficacy and safety of valve replacement with partly or whole mitral valve structure for treatment of rheumatic mitral valve disease.

目的：探讨保留部分或全部二尖瓣结构的瓣膜置换治疗风湿性二尖瓣疾病的有效性和安全性。

No need to install the valve In the maintenance of a ring circuit, it can close the loop on the balance valve, balance valve at this fire pumps time to play the role of water cut off valves, repair is completed and then revert to its original locked position.

不必再安装截止阀在检修某一环路时，可将该环路上的胶体磨平衡阀关闭，此时平衡阀起到截止阀截断水流的作用，检修完毕后再回复到原来锁定的位置。

No need to install the valve In the maintenance of a ring circuit, it can 关上 the loop on the balance valve, balance valve at thellosfire pumps time to play the role of water cut off valves, repair is completed and then revert to its original locked position.

五、不必再安装截止阀在检修某一环路时，可将该环路上的胶体磨平衡阀关闭，此时平衡阀起到截止阀截断流水的效用，检修完结后再答复到本来锁定的位置。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。