相同速度下，患侧和健侧股四头肌和腘绳肌离心收缩肌力明显大于向心收缩；
The eccentric contraction of both sides′ quadriceps and hamstring produced significantly higher torques than concentric contraction did in same speed.
DX型钢绳芯带式输送机属于高强度带式输送机，适用于高速度、大运量和长距离的散状物料运输。
DX - type steel-cord belt conveyor is a high intensity belt conveyor, which is used for high-speed, large capacity and long-distance transport of bulk materials.
经度早期的方法测量速度的绳子扔一个涉及绳拴在一个日志在船的左右。
An early method of measuring speed involved throwing a knotted rope tied to a log over the side of the ship.
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