锥形的,渐缩的;
例句:
Three links, tapered roller tube, pipe and other concrete pump tube.
三通 、 锥形托辊管 、 砼泵管等管件.
To shape or enlarge ( a hole ) with a tapered, serrated tool.
凿孔扩大用带齿的尖的工具钻或扩大 ( 孔 )
The pupil tapered one end of the pencil with a knife.
小学生用刀把铅笔的一头削尖了.