The influence of extrusion on activity of soybean urease was studied under different temperatures, different steam amounts and different pressure ring diameters.
研究在不同温度、不同蒸汽添加量以及不同的压力环直径条件下，挤压膨化对大豆中脲酶活性的影响。
It confirms that tempering quality after being circle checked is the main cause for deformation of the steam seal ring made by rolling.
通过分析，确认校圆后的回火质量是钢板卷制汽封圈产生变形的主要原因。
From 1993, the reconstruction of low pressure cylinder sealing began to conduct. The floating ring seal are changed into steam jamming seal. The applied effect is good.
1993年开始实施低压缸密封改造，将浮环密封改造成蒸汽阻塞密封，使用效果良好。
In the existing 300mw steam turbine condenser performance curve, the cavitation in water ring vacuum pump is not taken account, so the curve can't exactly reflect the operation state of condenser.
现有的300MW机组凝汽器特性曲线没有考虑到水环真空泵汽蚀特性对凝汽器运行特性的影响，不能准确反映凝汽器的运行状态。
Water-ring vacuum pump usually gets steam-erosion in summer due to high temperature of working-water, which affects its safe and steady operation.
水环式真空泵在夏季往往因工作水温度高发生汽蚀，影响设备安全稳定运行。
Water-ring vacuum pump usually gets steam-erosion in summer due to high temperature of working-water, which affects its safe and steady operation.
水环式真空泵在夏季往往因工作水温度高发生汽蚀，影响设备安全稳定运行。
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