Jones reducer
[化] 琼斯还原管
🧩 词语组成解析
jones
[[dʒəunz]]
n. 琼斯（姓氏）
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
And you never know
而你永远也猜不到
A faithful friend is hard to find.
益友难得。
Though in those days, traveling was not as easy as it is today,
尽管在当时旅行不像现在这么容易，