muffler

• 多义词：指安装在汽车排气系统上用来降低噪音的装置；也指围在脖子上保暖的围巾；还可指消除各种系统振动的装置。

A noun with multiple meanings: a device fitted to a vehicle's exhaust to reduce noise; a scarf worn around the neck for warmth; or a device that dampens oscillations in various systems.

1. Exhaust silencerB1formalamericantechnical

   A tubular device fitted to the exhaust system of a vehicle to reduce the noise produced by the engine.

   消声器

   • The car's muffler was damaged, making the engine roar loudly.
   • He replaced the old muffler with a new one to pass the inspection.
   • A broken muffler can cause excessive noise pollution.

   同义词silencer

2. Neck scarfB1formalbritish

   A piece of fabric worn around the neck for warmth or fashion.

   围巾

   • She wrapped a woolen muffler around her neck to keep warm.
   • He wore a stylish muffler with his winter coat.
   • The old man adjusted his muffler before stepping out into the cold.

   同义词comforterscarf

3. Damping deviceC1formaltechnical

   A device that reduces the amplitude of oscillations in electronic, mechanical, or acoustic systems.

   消音器

   • The engineer installed a muffler to dampen the vibrations in the machine.
   • Acoustic mufflers are used in recording studios to control sound reflections.
   • The electronic circuit included a muffler to reduce signal noise.

   同义词absorberdamper