Lubricate oil automatic balance device, keep the equal oil level equal in each unit.
机油自动平衡装置，保持各单元油面平衡。
The study on automatic balance of the rotor was made both from theory and ap-plication.
对转子自动平衡问题进行了理论和应用研究。
The study on automatic balance of the rotor was made both from theory and ap-plication.
对转子自动平衡问题进行了理论和应用研究。
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