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。
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300 MW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。
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