The new unit uses the pitman reserse mechanism instead of the crosshead slide reverse rack, adopts weightbalancing instead of air balancing, and is provided with an improved guiding system.
这种抽油机以连杆式换向机构取代原有的十字滑块式换向架，以重块平衡代替气平衡，并改进了导向系统。
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This paper discusses the balancing of planar three-degree-of-freedom parallel manipulator used as positioning mechanism of surface mounting machine. The counter-weightbalancing method is used.
The next step of the wizard will let you add specific servers for each node of the cluster and define a load-balancing scheme by assigning each application server a weight in a range from 0-20.