Flow vibration in turbine control valve is the major consequences ofvalve stem rupture, valve disc damage as well as the resonance of valve and its pipings.
调节阀的流体振动会造成阀杆疲劳断裂与阀碟的损坏，以及整个阀门及管道系统的共振。
2
The shortcoming of top valve housing for standard type oil well pump plunger is wear and ruptureof oil flow pore wall.
标准型抽油泵柱塞上阀罩的工作缺陷是出油孔壁磨损断裂。
3
Pneumoceles may occur suddenly, presumably by a trap-valve mechanism or by ruptureof a large mucocele.