taper cone

例句：

1. 1.The shape of the cone is tapered at the top, making it easier to hold.
   这个锥体的顶部是锥形的，这使得它更容易握持。
2. 2. This tapered cone is used to collect rainwater for irrigation.
   这个锥形截头圆锥体用于收集雨水进行灌溉。
3. 3.The cone was made from a piece of wood that had been tapered to fit the hole in the wall.
   这个锥体是用一段已经削尖来适配墙上孔洞的木头制成的。