查询词典 flutter valve

Second, the dynamic design on CK1E pilotless aircraft flutter model and also that on J7E fighter plane flutter model are studied and fulfilled satisfactorily.

本文较系统地研究了工程中常遇到的几类链状结构的振动性能设计问题及CK1E和J7E两种飞机颤振模型的动态设计问题。

The result exhibit add flutter better than no flutter, especially MDF on 1k~1.25 kHz and Japanese cedar on 1.6 kHz could get the best scattering coefficients S＝1, even on 5kHz still have the scattering effect.

本研究进一步探讨有、无翼板对扩散板散射效果之影响，分别以三组不同木质材料进行比较，结果显示，有翼板之散射效果比无翼板佳，其中又以MDF 於1k~1.25kHz与柳杉於1.6kHz时有最佳之散射效果S=1，且於最高频5kHz时仍有散射效果产生。

Methods: After the adult healthy dogs are anesthetized, the animals were perfused and fixed. The bicuspid valve, tricuspid valve, aortic valve, pulmonary valve, pectinate muscles of left and right atrium, different arterial segments and inferior vena cava were removed out and observed under the scanning electron microscope.

健康成年狗麻醉后，常规灌注固定，取出心脏二尖瓣、三尖瓣、主动脉瓣、肺动脉瓣、左右心房梳状肌、不同的动脉段和下腔静脉等，用扫描电镜观察。

Ram sealing surface than the valve seat to seal a broad margin, and to ensure that the valve is not in use before the sealing of the bottom line and the gate valve seat bottom line sealing surface at the same level, so that the valve in the use of a certain period of time after not even wear Will reduce the need to ensure the sealing surface width.

闸板密封面比阀座密封面宽出一定的余量，并保证阀门在未使用前闸板密封面底线与阀座密封面底线在同一高度，使阀门在使用一定时间后即使磨损也不会减少必须保证的密封面宽度。

Driven by the valve stem to close one to wind the rotatory central point while rotating,the spheroid to the third a bit more separately, relative valve central point at this moment,from the third orbit a bit one cam form partial another,enter valve flat make valve it keep sealing to shut off down wards .

由阀杆带动关闭件绕旋转中心点转动时，球体由另点移至第三点，此时相对阀门中心点，从另点的第三点轨迹为一凸轮状偏心，向下进入阀座使阀门关闭保持密封。

Valve: The sealing performance between valve check and seat ring will be damaged because of worn and corrosion. If this occur, close the main valve and take down the valve clack to polish.

阀门：吹灰器阀门因为吹灰介质的磨损和腐蚀，会引起阀瓣与阀座环间密封性的破坏，如果出现这种情况，应关闭吹灰器总阀，取下阀瓣研磨。

After this companys product is and the valve assembles the electrically operated valve or the air operated valve uses, they use for to control the valve opening or the closure, the operator may in the scene manual operation, perhaps the long-distance range carry on the control in the control room.

本公司的产品是和阀门组装成电动阀门或气动阀门后使用的，它们用来控制阀门的开启或关闭，操作人员可以在现场手动操作、或是在控制室内远距离进行控制。同时还提供与各种型号匹配的控制器、控制箱等。

Methods Re-operations were done in235cases with recurrent cardiac valve diseases from1985to2003.Aˉmong these patients,155cases had received closed mitral commissurotomy,12with mitral valvuloplasty,43with biologˉical prosthetic failure,6with mechanical prosthetic dysfuction,6with periprosthetic leakage,2with prosthetic valve enˉdocarditis,8with other valve disease after valve replacement,1with closed mitral commissurotomy and redo MVR,redo DVR,1with closed mitral commissurotomy and redo MVR,redo MVRand redo AVR.6cases received TVR and179with tricuspid valvuloplasty.

1985年1月～2003年9月，235例复发性心脏瓣膜病再次手术，其中二尖瓣闭式分离术后155例，二尖瓣直视成形术后12例，生物瓣衰43例，机械瓣功能障碍6例，瓣周漏6例，机械瓣心内膜炎2例，换瓣后其它瓣膜病8例，1例闭式分离术后MVR后瓣膜障碍再次DVR，1例闭式术后MVR后瓣衰再次MVR后再行AVR，1例MVR后AVR后TVR。

A piston-shaped valve needle is contained in the bore in a longitudinally sliding fashion and has an essentially conical valve sealing surface by means of which the valve needle cooperates with the valve seat in order to control the at least one injection opening.

一个活塞状的阀针(5)可纵向移动地设置在孔(3)中并具有一个基本上锥形的阀密封面(7)，阀针(5)通过该阀密封面与阀座(9)相配合，以控制至少一个喷射口(11)。

Duckbill valve installation: 1, straight-through lift-type check valve should be installed in horizontal pipe on the road, vertical lift check valve and bottom valve is usually installed in a vertical pipe on the road, and the bottom-up flow of media.

一、鸭嘴阀的安装使用： 1、直通式升降式止回阀应安装于水平管路上，立式升降式止回阀和底阀一般安装在垂直管路上，并且介质自下而上流动。

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。