Tappet
n. 梃杆, 凸轮从动件\\n[机] 挺杆
📖 牛津释义
tappet
n
projection in a piece of machinery that causes a certain movement by tapping against sth, used eg to open and close a valve 挺杆.
🗣️ 情景例句
I happened to over hear what he said.
我碰巧听到了他所说的话。
It depends on the quantity ordered.
这要根据所订的数量而定。
international standards of water treatment are usually followed at bottling plants.
装瓶厂通常遵循国际水处理的标准。