单词	伺候之人
释义	同ATTENDANT
随便看	extraction cell extraction--cell extraction channel extraction check valve extraction coal extraction column extraction--column extraction condensing turbine extraction constant extraction cost extraction cycle extraction distillation extraction distillation; extractive distillation extraction, double-solvent extraction-- double-solvent extraction efficiency extraction electrode extraction, equal-volume extraction equilibrium extraction equilibrium coefficient extraction equipment extraction factor extraction fan extraction fermentation extraction field