所述顶盖上设有冷凝片，冷凝片位于蒸汽入口的上部。
A condensing sheet is arranged on the top cover, and is located on the upper portion of the steam inlet.
换热器蒸汽入口和出口温差小，压差小，管程传热面积大。
There are small temperature and pressure difference in steam inlet and outlet of heat exchanger, and big heat transfer surface.
结果表明入口蒸汽压力和过冷水温度是影响汽羽形状的主要因素。
The results indicated that the shape of steam plume was influenced by the inlet steam pressure and subcooled water temperature.
计算并分析了第二喉管与工作蒸汽喷嘴喉管面积比、喷嘴出口截面与混合段入口截面间的距离等几何参数对喷射器操作性能的影响。
The performance of steamjet ejector was investigated by changing the secondary to the primary throat area ratio and the position of the steam nozzle.
控制合适的操作条件，在大油气管线进分馏塔入口处增加蒸汽环管，可以有效防止结焦。
Coking at the inlet of large gas line to fractionator has been effectively prevented by setting up steam circle pipes under appropriate operation conditions.
当「建立真空」 （正常操作下）时，空气入口处的不可凝结物和蒸汽中的氧含量以及凝结水必须由主抽汽器排出。
When " holding " ( during normal operation ), non condensable, which are coming from air ingress and oxygen content in steam and condensate, must also be extracted normally by main ejectors.
首先用热毛巾热敷角栓部位，蒸汽以及热量会让毛孔的入口以及周围变得柔软。
Start with hot towels, hot Angle plug parts will let of steam and heat into the pores of the portal, as well as the surrounding.
计算并分析了第二喉管与工作蒸汽喷嘴喉管面积比、喷嘴出口截面与混合段入口截面间的距离等几何参数对喷射器操作性能的影响。
The performance of steam-jet vacuum pump was investigated by changing the ratio of secondary to primary throat area, relative position of the steam nozzle and the taper of the mixing section.
该文介绍了油封机械泵的抽速与入口压力的关系、泵抽气效率下降的原因，指出泵入口管道的流导和油蒸汽逆流是造成泵抽速下降的主要原因。
Discusses the relationship between pumping speed and inlet pressure of an oil-sealed mechanical pump and the reason why its pumping efficiency drops down.
该文介绍了油封机械泵的抽速与入口压力的关系、泵抽气效率下降的原因，指出泵入口管道的流导和油蒸汽逆流是造成泵抽速下降的主要原因。
Discusses the relationship between pumping speed and inlet pressure of an oil-sealed mechanical pump and the reason why its pumping efficiency drops down.
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