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
You don't sound very enthusiastic.
你似乎不太热衷。
Use is a second nature.
习惯成自然。
A young man and a young woman were sitting behind me.
一青年男子与一青年女子坐在我的身后，