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循环停滞
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  “循环停滞”译为未确定词的双语例句
    In the off design tube, flow rate was low and circulation ratio was high, so steam blanketing would occur.
    偏差管内的流量较小 ,循环倍率较小 ,容易发生水循环停滞
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  circular stop
To this end we introduce a mathematical model able to describe the phenomenon and we study the dependence of the detected signal on the radius and the position of a circular stop operating as a spatial filter.
      
Blocking the nonzero orders, with either a circular stop or two knife edges, increases the Strehl to 0.99.
      


Rational arrangement and design of water cycling system was important to the safe operation of the waste heat boiler. Flow rates in the parallel tubes were uneven when water flow circuit was complex. In the off design tube, flow rate was low and circulation ratio was high, so steam blanketing would occur. When the thermal charge of the waste heat boiler was very low, both circulating head and circulation velocity was very low. When the natural circulation was stagnation in the waste heat boiler, the off ...

Rational arrangement and design of water cycling system was important to the safe operation of the waste heat boiler. Flow rates in the parallel tubes were uneven when water flow circuit was complex. In the off design tube, flow rate was low and circulation ratio was high, so steam blanketing would occur. When the thermal charge of the waste heat boiler was very low, both circulating head and circulation velocity was very low. When the natural circulation was stagnation in the waste heat boiler, the off design tube would crack. Flow rate and hot face tube temperature would pulse when water flow circuit was pulse in the parallel tube, and then the security of the waste heat boiler decrease. Rational arrangement of the collecting header can decrease the unevenness of flow rate and eliminate pulsation in the parallel tubes. Reasonable operation can increase reliability of the natural circulation. It is effective to the safe operation of the waste heat boiler.

水循环回路的合理布置和设计对余热锅炉的安全运行具有重要意义。循环回路结构复杂容易导致并联管内的流量分配较大的不均匀性。偏差管内的流量较小 ,循环倍率较小 ,容易发生水循环停滞。当余热锅炉的热负荷很低时 ,循环流速较小 ,自然循环发生停滞 ,容易导致余热锅炉发生爆管。水循环的脉动会使并联管内循环流速和管壁温度发生脉动 ,余热锅炉的安全性下降。消除并联管内的流量分配不均匀和水循环脉动 ,合理运行 ,能够提高自然循环的可靠性 ,对余热锅炉的安全运行是有利的

 
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