bell-shaped的用法和樣例：
辭彙搭配
- bell shaped suspension insulator 碗形懸挂絕緣子...
- bell shaped insulator 鈴式絕緣子
- bell shaped nozzle 鐘形噴嘴
- bell shaped chain wheel 杯形鏈輪
- bell-shaped curve 鐘形曲線
- bell shaped sprocket wheel 杯形鏈輪
- bell-shaped spot 鍾型點, 鈴型點...
- bell-shaped symmetrical curve 鐘形對稱曲線...
- bell shaped lamp shade 鈴形燈罩
