On the basis of a large number of field test data, the regression of the displacement coefficient and system efficiency for pumping unit wells were established.
本文在抽油机井大量现场测试数据的基础上，建立了抽油机井系统效率、排量系数这两个重要指标与诸影响因素之间的回归方程。
A new concept on the displacement operator for beam unit is established, and a method of calculating the deflection Angle of beam unit is then provided.
本文建立了一个梁单元位移算子的新概念，并提供一种梁平面弯曲变形的梁单元位移算子求变形的计算方法。
With MCS-51 single-chip microcomputer as control unit and grating scales measuring displacement, a new type of quasi-close loop control system is built on universal lathe.
文章选用MCS -5 1单片机作为控制核心，直线光栅测量位移，在普通车床上建立了一种新型的准闭环控制系统。
Therefore, the development of a simple structure, good reliability, easy maintenance, and can achieve a long stroke, large displacement, heavy load of new unit, is still a much-needed study.
因此，研制一种结构简单、可靠性好、维护方便且能实现长冲程、大排量、重负载的新型抽油机，仍然是一个急需研究的课题。
Therefore the reciprocating compressor according to the invention can reduce the load of a compressing unit and can enlarge the displacement amount relatively to the output of the driving unit.
据此，根据本发明的往复式压缩机能够降低压缩单元的负荷，并且相对于驱动单元的输出而能够扩大排出量。
The safety switch box is further provided with a contact terminal standardization mark for control and fixation, and an external winding displacement electrical-connection unit can be reserved.
该安全开关箱进一步设有控制、固定用的接点端子规格化标示，且可预留外接排线电连结单元。
The safety switch box is further provided with a contact terminal standardization mark for control and fixation, and an external winding displacement electrical-connection unit can be reserved.
该安全开关箱进一步设有控制、固定用的接点端子规格化标示，且可预留外接排线电连结单元。
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