In a realistic crystal growth system, convection in melt is always unavoidable, therefore, the paper studies the crystal growth with the effect of convection in melt.
在实际晶体生长过程中，熔体对流对晶体生长的影响是不可避免的，因此本文研究有对流作用的晶体生长问题。
In addition, mute oil free compressor USES air convection principle, to achieve the natural cooling effect.
另外，静音无油空压机采用空气对流原理，达到自然冷却效果。
The effect of convection differs with the laser power.
激光功率不同，对流作用不同。
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