英语语法分析

Knight system is rooted in the superstratum society of mid-century Europe.

骑士制度产生于中世纪欧洲的上层社会。

Rocking vibration of rigid disk resting on saturated medium with an elastic superstratum are studied by analytical methods.

采用解析的方法研究了上覆单相弹性层的饱和地基上刚性圆板的摇摆振动。

Torsional vibrations of a rigid disk resting on saturated medium with an elastic superstratum are studied by analytical methods.

采用解析的方法研究了上覆单相弹性层的饱和地基上刚性圆板的扭转振动。