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1·When Change the sequence valve of 300mw turbine, vibrating increased. This effected the safety and economy of the turbine.

某300 MW汽轮机切换顺序阀时产生振动突升问题，影响机组的安全性和经济性。

2·The paper investigates the relationship between the cracking and closing characteristics and the structural parameter of the direct sequence valve.

本文主要研究直动式顺序阀的启闭特性与阀的结构参数的关系。

3·So the system can fully utilize the hydralicpower, otherwise the use of the lock sequence valve reduces the loss of energy, and improves the efficiency of the system.

因此该系统与利用滑板缸有杆腔的液压力的方案相比，液压力得到了充分的利用，另外通过采用自锁型顺序阀，减少了能量损失，使得系统的效率得到了提高。

4·Liaocheng power plants 600mw unit cant perform the switching operation from governing valve mode to sequence valve mode, which has long been a problem and affected the unit efficiency apparently.

聊城电厂600 MW机组投产以来一直存在调节阀无法切顺序阀运行问题，对机组的效率影响较大。

5·This paper studies the influence of converter transformer D-bridge zero sequence circulating current on valve short circuit protection.

笔者研究了换流阀三角形侧零序环流对阀短路保护误动作的影响。

6·Conclusion: It is difficult to place prosthetic valve in routine sequence of valve replacement in patients with small aotic annulus and perivalvular leakage and hemorrhage of aotic incision may occur.

结论：小主动脉瓣环者，如果按照常规瓣膜替换顺序，将带来瓣膜座环困难、瓣周漏、主动脉切口出血等并发症。

7·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。