表面张力-重力短峰波
surface capillary-gravity short-crested waves
骨质疏松性严重椎体压缩性骨折
Severe osteoporotic vertebral body compression fractures
流体重力循环
fluid gravity circulation
毛细管力-重力平衡
capillary-gravity equilibrium
体重－体长关系
weight-length relationship
体重体高比(BPI)
Ratio of body weight and length
压力-重力式润滑油系统
gravity forced feed oiling system