单词	確知之狀
释义	同CERTAIN
随便看	rotary diffuser rotary digester rotary disc rotary disc column rotary disc--column rotary disc (disk) regenerator rotary disc filter rotary discharger rotary disc meter rotary disc regenerator rotary-disc shutter rotary disk rotary-disk contactor rotary disk feeder rotary disk mower rotary disk mower-bar unit rotary dispersion rotary displacement pump rotary distributor rotary ditcher rotary drawworks rotary drier rotary drill rotary drill boring rotary drilling