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
That's impossible.
不可能。
I've got my hands full.
我手头正忙。
After a short time a line of bees fly to and from the hive like a thin stream.
过不了一会儿，一队蜜蜂像一条小溪一样在蜂箱和喂食点之间来往飞行。