🔍 牛津詞典 🎯
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:
BNC: 28157 COCA: 24972

ethylene

noun
/ˈeθɪliːn/
/ˈeθɪliːn/
(also ethene)
[uncountable]
(symbol C2H4)
(chemistry化学)
jump to other results
  1. a gas that is present in coal, crude oil and natural gas乙烯
BNC: 28157 COCA: 24972
BNC: 28157 COCA: 24972
BNC: 28157 COCA: 24972

👨🏻‍🏫 Mr. Ng 牛津詞典 📚 – oxford.mister5️⃣.net
切換為繁體中文
Site Uptime