automanual telephone exchange
半自动电话局
热门单词
- centrifugal switch
- centrifugal switching
- centrifugal tachometer
- centrifugal tension
- centrifugal thickening
- centrifugal swing
- centrifugal thickener
- centrifugal water-packed gland
- centrifugal whirling of shaft
- centrifugal type
- centrifugal type injection valve
- centrifugal type tachometer
- centrifugal xylem
- centrifugal-film evaporator
- centrifugal-flow compressor
- centrifugalize
- centrifugally lubricator
- centrifugal water pump
- centrifugalization
- centrifugally cast cluster
- centrifugally spun concrete pipe
