地球是一个能动的天体。
Next, create your dynamic body, which has a position, initial linear velocity, and angle.
接下来，创建动态物体，它具有方位、初始线速度和角度。
Gets the dynamic method whose body is generated by the current instance.
取得动态方法，其主体是由目前的执行个体所产生。
Objective To study the characteristics of human body dynamic responses to landing impact.
目的探讨飞船返回着陆时不同强度和不同姿态冲击下人体动态响应的规律。
The invention simultaneously provides equipment using the engine body or the dynamic balance slide block.
本发明同时提供使用上述机体或者动平衡滑块的设备。
The invention simultaneously provides equipment using the engine body or the dynamic balance slide block.
本发明同时提供使用上述机体或者动平衡滑块的设备。
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