Raschig ring
[化] 拉西环
🧩 词语组成解析
ring
[riŋ]
n. 戒指，指环;铃声，钟声;环形物;拳击场;
vt. 形成环状;环绕;使（例如铃）响;打电话给;
vi. 按铃，敲钟;回响;成环形;
🗣️ 情景例句
Chances are ten to one that we'll have a economic recession.
我们十有八九会陷入经济衰退。
What should this sandwich be seasoned with?
这些三明治该加些什么调味品好？
They were also quite sure that a cigarette end did not start the fire.
他们还十分肯定火灾也不是由烟头引起的。