Piston attenuator
[电] 活塞衰减器
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
n. 衰减器\\n[化] 衰减器; 弱化子
🗣️ 情景例句
Are you traveling alone or whth a friend?
你是一个人旅行还是结伴旅游？
Affectionate mother.
满怀慈爱的母亲。
They said that the march had been forbidden, but that wasn't true.
他们说游行向来是被禁止的，但这不是事实。