... superficial structure 表面构造 superficial tension 表面张力 superficial vapor velocity 空塔蒸汽速度 ...
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In the agricultural production, It is often to meet some questions about liquids superficial phenomenon, It need to study the liquid surface tension and measure the liquid surface tension coefficient.
农业生产上经常会遇到要研究液体表面张力，测量表面张力系数的问题。
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