🔍 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:
TOEFL BNC: 17091 COCA: 19564

silica

noun
/ˈsɪlɪkə/
/ˈsɪlɪkə/
[uncountable]
(symbol SiO2)
jump to other results
  1. a chemical containing silicon found in sand and in rocks such as quartz, used in making glass and cement二氧化硅
    Word Originearly 19th cent.: from Latin silex, silic- ‘flint’, on the pattern of words such as alumina.
TOEFL BNC: 17091 COCA: 19564
TOEFL BNC: 17091 COCA: 19564
TOEFL BNC: 17091 COCA: 19564
silica
Chemical substances used for making something: acetate, acrylic, glycerine...

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