He is releasing an album of love songs.他即将推出一张情歌专辑。Humour is wonderful for releasing tension.幽默是舒缓紧张情绪的良方。He stopped and faced her, releasing her wrist.他停下来面对着她，放开了她的手腕。Manlius spent his fortune in releasing debtors.曼利乌斯...
在边界和半边界区内,摩擦随纤维表面粗糙度的增加而增加.Friction increases with increasing fiber surface roughness in the boundary and semiboundary.小规模的粗糙度涉及到颗粒边缘和破坏表面.This roughness occurs on a small scale, involving grain boundaries and failure su...