提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
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.
压入式螺母通过加热或利用超音波可快速安装到热塑性塑料中，它的两道相反旋向的压花带可提供较高的抗扭转和抗拉拔能力。
Insert nut is designed for rapid installing into thermo-plastics by means of ultrasound. Its two opposite helical knurl bands provide a combination of high torque and pulling out resistance.
针对LF 6合金筒形件室温下反旋成形时出现过几种不同类型的开裂现象，结合理论分析结果，对各种裂纹的产生原因给出详细的解释。
Different types of cracks appear during the LF6 alloy flow turning at room temperature. Combining the theoretical analysis results, the reasons of producing cracks were explained in detail.
针对LF 6合金筒形件室温下反旋成形时出现过几种不同类型的开裂现象，结合理论分析结果，对各种裂纹的产生原因给出详细的解释。
Different types of cracks appear during the LF6 alloy flow turning at room temperature. Combining the theoretical analysis results, the reasons of producing cracks were explained in detail.
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