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1·The water level control for the steam drum is all along a typical issue in the control domain.

锅炉汽包水位的控制一直是控制领域的一个典型问题。

2·This paper elaborates some opinions about steam drum water lever measuring technique and application of control device in sub-critical units.

本文阐述了在亚临界机组中汽包水位的测量方法及控制设备应用的几点见解。

3·In the process of lifting the high pressure steam drum of a 9e HRSG, great deformation and stress may happened to the drum and associated pipes.

某热电厂早期进口的9e HRSG高压汽包上抬过程中，汽包或与汽包相连的部件可能产生过大的变形和应力。

4·Actual application for control of water level in steam drum presents that the fuzzy PID controller can improve the performance of system obviously.

对锅炉汽包液位的控制表明这种模糊pid控制器可明显提高系统的性能。

5·The paper analyses the leaking reasons for the newly installed valves of the new HP steam drum, and describes the measures to plug the leak under pressure.

分析新高压汽包一批新安装阀门泄漏原因，并详细介绍带压堵漏所采取的措施。

6·The dynamic characteristics of steam drum water level along with its traditional control technology and the fuzzy control theory have been detailedly analyzed in this paper.

文中较为详尽地分析了汽包水位对象的动态特性和传统的控制技术以及模糊控制理论。

7·Besides, the fatigue damage for both the boiler steam drum and the notch specimen under varied amplitude low cycles is investigated with the effect of average stress taken into account.

同时还研究了变幅低周疲劳下缺口试件和锅炉汽包的损伤，并考虑了平均应力的影响。

8·Heated with saturated steam, to increase the drum wall thickness and weight.

用饱和蒸汽加热的，须增加鼓壁的厚度和重量。

9·A condensation ratio coefficient is introduced to obtain the steam volume under water level in the drum.

引入凝结比例系数，简化了汽包液面下汽容积的求取。

10·For the fact that the present sulphuric acid price is low, it is proposed to change the production of compound fertilizer from rotary drum steam granulation to ammonia and acid granulation process.

针对当前硫酸价格低，提出了把转鼓蒸汽造粒生产复合肥工艺改为氨酸法造粒生产复合肥。