滚筒筛一种圆筒形的可旋转的筛,用于岩石和矿石的筛分或大小测量 A revolving cylindrical sieve used for screening or sizing rock and ore.
单簧管,黑管一种管乐器,有直的圆筒形管身和一个外敞的管口及一个单簧吹口,以指孔和键的方式演奏 A woodwind instrument having a straight, cylindrical tube with a flaring bell and a single-reed mouthpiece, played by means of finger holes and keys.