fusee
英
美
n. 耐风火柴，引信（线），（钟表）均力圆锥轮
英英释义
noun
- any igniter that is used to initiate the burning of a propellant
- a friction match with a large head that will stay alight in the wind
- a colored flare used as a warning signal by trucks and trains
- a spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring