Reducer union
[化] 变径接头; 过渡接头
🧩 词语组成解析
n. 渐缩管, 缩减者, 还原剂\\n[化] 变径段; 变径管; 异径管; 大小头; 还原剂; 减速器; 减振器; 节流器
🗣️ 情景例句
Hi, Betty. I'll be at five five five...seventeen twenty.
好 Betty 我的号码是555-1720。
I know the boy whose father is a ball player.
我知道那个男孩的父亲是球员。
It's nearly ready.We can have dinner at seven o'clock.
马上就好。7点钟我们可以吃饭。