查询词典 closed system

On-line, closed-loop, major automatic control system such as boiler controls,flue gas scrubber controls, and many minor sub-loop controls, such as temperature controls for turbine lube oil and generator hydrogen,etc.

在线一闭环主自动控制系统，比如锅炉、烟气除尘器的控制，许多次要子环的控制，如对汽机润滑油和发电机氢气的温度控制等等。

Also in this system were ball valves. These valves are not considered sanitary valves since the center of the valve can have water in it when the valve is closed. This is a stagnant pool of water that can harbor microorganisms and provide a starting point for a biofilm.

还有，在这个系统中用到的是球阀，球阀是不被认为是卫生阀门，因为当阀门关闭时，阀门中心会留有水，这就形成一个滞水池，成为微生物滋养的港湾，还形成了生物膜的起始点。

Analyzing and simulating the full closed-loop position servo system of CNC machine tools,this paper proves that mechanism velocity feedback can eliminate the oscillation caused by the lack of rigidity of mechanical driving chain,which is applied in the test process and good result are achieved.

通过对数控机床全闭环位置伺服系统的分析和仿真，证明机械速度反馈能有效地消除由于机械传动链刚度不足引起的振荡，并在调试过程中得到应用，收到良好效果。

Completely automated airproof material loading, closed type material unloading system, pipeline connection, quick clamp connector, free of blind corner, convenient for dismantling and easy for cleaning .

全自动密封式上料，卸料系统，管道式联接，快开卡箍式联接方式，无死角，拆卸方便，易清洗。3。设备按 2bar 耐压标准设计，整机各部件有良好的接地方式。

ABSTRACT :Parade car belonging to coal production system is an important part, it refers to the meaning of the wellhead, the bottom of the machinery, telegraph equipment in the closed conditions, in accordance with the logic of the design cycle process moves auxiliary cage complete upgrade mandate.

摘 要：矿井井口液压站设计，副井操车系统是煤矿生产中重要的一部分，它的含义是指井口、井底有关机械、电报设备在规定的闭锁条件下，按照设计的逻辑程序循环动作，辅助罐笼完成提升任务。

Basing on the previous model, the simulation system of planning design object of Tianjing Shenhua closed yard coal wharf second stage engineering is set up with the WITNESSS simulation platform.

基于上述模型，在WITNESS仿真平台上建立了神华天津煤炭码头二期工程物流系统的仿真模型。

On the basis of analysis of system characteristics, frequency conversion technique is adopted to transform an aqueous ammonia pump of high pressure in coal charging process without dust of coke oven, and the closed loop control is used, which have gained better effects.

通过系统特性分析，对焦炉无烟装煤工艺中高压氨水泵运用变频技术进行改造，并采用闭环调节，取得了较好的实际效果。

It's an effective measure of fast valving in improving the dynamic stabilities of power system and preventing the overspeed of steam turbines, but the fast valving technique available can satisfy the need of modern steam turbines no more. On the basis of the new type fluid logic valve, which combines the regulating systems and safety systems happily, the steam turbine EHC based on new principle is put forward, one of its outstanding characteritics is, the fast valving is operating in a closed control loop. For the implementation of control for steam generator regulation and safety systems with nonlinear mult-operating modes, a new methodology for designing a fuzzy logic controller is proposed, which is based on the combination of"error phase plane"and"variable universe of discourse". Application of a double-mode FLC with the new methodology is presented, the validity of the design methodolody is desmonstrated by test; A new methodolody is also presented to improve the design and tuning of a FLC using variable structure control theory.

本文还详细讨论了快关控制在提高电力系统暂态稳定性及超速保护中的应用，分析了现有的快关控制规律的局限性，研究出一种基于新型快关阀的汽轮机电液控制系统，其突出特点是使汽轮机闭环快关成为现实，指出这种基于新的组成原理与设计方法的汽轮机电液控制系统对不同工况下的适应能力；针对汽轮发电机组多工况、非线性的特点，提出一种把&误差相平面&方法与&可变论域&思想有机结合的双模FLC设计与调整的新方法，试验结果表明该系统具有良好的动、静态特性；为改善FLC控制规则的设计与调整，作者还介绍了一种把滑模变结构理论成功应用于模糊系统设计的新方法。

The general situation of hydraulic AGC techniques for copper cold rolling mill s is introduced, the direct measurement and closed loop control for mill gap are simply described, the natural rigidity of mill and the equivalent rigidity in gap control are analysed and compared, and at last the realization of a gap direct measurement AGC system is simply described as an example.

介绍了铜带冷轧机液压AGC技术的概况；简述了轧机辊缝直接测量和闭环控制，并对轧机自然刚度和辊缝控制的等效刚度作了分析比较；最后，作为实例，简要说明了一个辊缝直接测量AGC系统的实现。

Future hopes for this experiment results has a reference value on extending the closed cycle diesel engine system running time.

未来期许本实验之结果，对延长密闭式循环柴油引擎系统运转时间有参考价值。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。