- 1活塞
A piston is a short, solid piece of metal that sits tight inside a tube. In a car engine, fuel burns and pushes the piston up and down. That up-and-down move turns other parts of the engine, and that is what makes the car go. Some pumps use a piston too: the same snug piece sliding in a tube, pushing water or air. On a trumpet, the buttons you press are also called pistons; they are little sliding pieces that change the note. The picture to keep is the same: a close-fitting piece moving in and out of a tube. People may say something "pistons" when it moves with that hard, regular beat, but the noun is the meaning you will meet first.
From the word’s history
Borrowed from French piston.
借自法文 piston。
組成Borrowed from French piston.
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
Pistonname
- 1
A surname.
pistonnoun/ˈpɪstən/
- 1
engineeringmechanical-engineeringmechanicsA solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)
- 2
entertainmentlifestylemusicA valve device in some brass instruments for changing the pitch
pistonverb/ˈpɪstən/
- 1
To move up and down or in and out like a piston.
- The Latino warrior fucked like a man possessed. His lean hips powered the pistoning rod in short, vicious jabs, so rapidly that the shit-streaked cock was a blur as it pounded Captain Randall's butthole, churning the screaming soldier's ass-juices, rectal blood, and smashed turds into a slimy froth.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。