fusee

• 多义词：钟表机构中的均力圆锥轮（带槽轴心）；运输工具使用的彩色预警信号火箭；可在风中持续燃烧的大头摩擦火柴；或用于引燃燃料的点火装置。

A noun with multiple meanings: a grooved spindle in a clock mechanism; a colored warning flare used by vehicles; a large-headed friction match that remains lit in wind; or an igniter used to initiate propellant burning.

1. Clock componentC2formal

   A spirally grooved spindle in a clock that counteracts the diminishing power of the uncoiling mainspring, ensuring consistent timekeeping.

   钟表部件

   • The antique clock's fusee was carefully cleaned and oiled.
   • Watchmakers often repair the fusee mechanism in vintage timepieces.
   • The fusee helps maintain even torque as the mainspring unwinds.

2. B2formal

   A colored flare used as a warning signal by trucks and trains to indicate danger or an emergency.

   警告信号

   • The truck driver placed a fusee on the road to warn other drivers.
   • Railroad workers use a fusee to signal an approaching train.
   • The red fusee burned brightly in the dark night.

   同义词flare

3. B2informal

   A friction match with a large head that will stay alight in the wind, often used for outdoor or emergency purposes.

   防风火柴

   • He lit a fusee to start the campfire in the windy conditions.
   • The survival kit included a fusee for emergency lighting.
   • A fusee can be struck against any rough surface to ignite.

4. Igniter for propellantC1formaltechnical

   Any igniter that is used to initiate the burning of a propellant, such as in rockets or fireworks.

   推进剂点火器

   • The engineer installed a fusee to ignite the rocket's fuel.
   • Fireworks displays rely on a fusee to start the chain reaction.
   • The fusee must be carefully positioned to ensure proper ignition.

   同义词fuseigniterprimersquib