In view that large top torque and negative torque are produced when crank balance (primary balance) is adopted, we present the secondary balance of beam pumping unit.
针对游梁式抽油机在采用曲柄平衡(又称一次平衡)时存在的峰值转矩较大、负转矩严重等现象，提出了有关抽油机的二次平衡问题。
And I call the torque that is in the blackboard, I call that my positive direction, and the torque that is out of the blackboard, I give that a negative direction.
我把向黑板里面的，这个力矩，认为是正方向，而向黑板之外的，那个力矩，我认为是负方向。
Compared with conventional beam pumping unit, the swing-rod beam pumping unit can reduce the maximum crank axle torque markedly, reduce and even eliminate negative crank axle torque.
同常规型游梁式抽油机比较，该机型可以显著降低曲柄输出轴的最大扭矩，减小甚至消除负扭矩，在降低能耗的同时改善了减速箱的受力状况。
The deviation between temperature rise efficiency and torque efficiency has a negative impact on the accurate assessment of experimental results of axial compressor.
轴流压气机试验时，温升效率与扭矩效率之间的偏差给准确评估试验结果造成了一定影响。
But net torque curve of crankshaft exists negative . The compound balance beam pumping units is put forward.
但净扭矩曲线存在负值，建议增加曲柄二次平衡，设计成复合平衡型抽油机。
Due to electric current negative feedback control, the intensity of braking torque can be controlled as it is needed.
由于采用了电流负反馈控制方式，制动力矩的大小可根据需要进行控制。
Can manually set the speed, torque, torque protection, emergency stop, positive and negative rotation, program locking, password Settings and input.
可以手动设置转速、扭力、扭力保护、急停、正反旋转、程序锁定，密码设置与输入。
Can manually set the speed, torque, torque protection, emergency stop, positive and negative rotation, program locking, password Settings and input.
可以手动设置转速、扭力、扭力保护、急停、正反旋转、程序锁定，密码设置与输入。
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