振动旋转钻眼
vibratory rotary drilling
冲积转式钻眼
percussive rotary drilling
板框式旋转滤网
plate and frame rotary strainer
被动式旋转磁通压缩电机
Passively rotated flux compressed pulsed alternator
便携式旋转粘度计
portable rotation viscometer
变频旋转式压缩机
inverter contrilled rotary compressor