conical head without transition knuckle

例句：

1. 1. The newmodel car has a conical head thatlooks sleek and modern.
   这款新型汽车有一个圆锥形的头，看起来既时尚又现代。
2. 2. The scientist used a cone-shaped head to collect data from the sky.
   这位科学家使用一个圆锥形的头从天空收集数据。
3. 3. The construction worker useda cone-shaped head to dig thefoundation for the new building.
   建筑工人使用一个圆锥形的头来为新建筑挖掘地基。