为了使传动轴转动，所有肌肉必须协调一致，一组接一组有节奏地收缩。
To make the shaft turn, the muscles work in concert, rhythmically contracting, one pair after another.
双级减速器除了存在单级的传动问题以外，还有外形尺寸协调、传动比分配、功率流分流及机构平衡等问题。
Besides existing the single transmission questions, two grades of reducer have other problems, such as dimension coordinate, transmission radio distribute, power flow direction and balancing.
经试验表明，该传动系统传动性能良好，各装置工作协调，安全可靠，达到设计要求。
As the trails show, properties of the transmission system are very good, every unit works harmoniously, safely and reliably, and can meet the design requirement.
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