piston
US /ˈpɪs.tən/
UK /ˈpɪs.tən/
形容詞
1.
活塞
名詞
1.
活塞
a disk or short cylinder fitting closely within a tube in which it moves up and down against a liquid or gas, used in an internal combustion engine to derive motion, or in a pump to impart motion.
在 Lingoland 學習這個單詞