该驱动系统包括至少一个平衡轴和一个扭力杆。
The drive system is comprised of at least one balance shaft and a torsion bar.
这个平衡使得四轴飞行器在空中平稳悬停。
一个磁性的平衡器是由一个轴悬在两个磁体。
A magnetic balancer consists of a shaft which is suspended between two magnets.
但泵轴受不平衡力，磨损严肃，走漏较大。
But the shaft by the unbalanced force, serious wear and tear, leak bigger.
但泵轴受不平衡力，磨损严肃，走漏较大。
But the shaft by the unbalanced force, serious wear and tear, leak bigger.
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