- free boundary flow
- 自由边界流
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
Free surface — In physics a free surface is the surface of a body that is subject to neither perpendicular normal stress nor parallel shear stress,cite web |url=http://www.vishay.com/company/brands/measurements group/guide/glossary/freesurf.htm |title=Glossary … Wikipedia
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