环面螺旋旋转变换
Torus screw rotation transformation
双轴旋转膜组件
double-shaft rotary membrane module
碳膜旋转可变电阻器
carbon film rotary variable resistor
旋转转换充填工具
rotary compactor crossover tool
氧气斜吹旋转转炉
oxygen inclined blowing rotating converter
~(29)Si魔角旋转核磁共振波谱
29Si MAS NMR spectroscopy