The steel plate that is attached to the end of the walking beam on a beam pumping unit.
固定于游梁式抽油机游梁端部的钢板。
The steel beam that connects the rotary counterbalance with the walking beam on a beam pumping unit.
在游梁式抽油机上使旋转的平衡块与游梁相连的钢杆。
According to this exact analytical expression, the effect of every part of a beam pumping unit on cr...
以摆杆型游梁式抽油机为例，给出了分析过程和具体算例。
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