This paper analyzes the work principle of the three planet rollers mill for helical gill tube, and gives a formula as the basis of transmission system design.

分析了螺旋翼片管三辊行星轧机的工作原理，给出了传动系统设计的基本公式。

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In this paper, the small-scale planet style ball mill is applied to manufacture the industrial roseite powder in XinJiang Province.

本研究采用小型行星式球磨机加工新疆工业蛭石粉体。

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The country that was once the cheap factory labor mill of the planet continues to go through a major structural shift in its economy.

FORBES: U.S. Job Market Weak; Brazil Job Market Strong