butterfly nut
英 [ˈbʌtəflaɪ nʌt]
美 [ˈbʌtərflaɪ nʌt]
螺形螺帽；元宝螺帽
双语例句
- Butterfly nut of iron or steel
蝶形螺帽，铁或钢制 - Hsieh Yu butterfly valve is designed for installation with square screw, nut and washer.
协羽的蝶阀安装设计是使用方形螺丝，螺母及华司所组成。
英英释义
noun
- a threaded nut with winglike projections for thumb and forefinger leverage in turning
Synonym: wing nutwing-nutwing screwthumbnut