alum中文什么意思

n.
明矾 basic [cubic] alum 明矾石。n.
〔口语〕校友(＝ alumnus 或 alumna)。

• papermakers alum or alum:    矾土或明矾
• acid alum:    酸性明矾
• alum atsuen:    铝压延

例句与用法

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1. Add the alum slowly to the cup of hot water
   给这杯热水添加缓慢的明矾。
2. Pral - 2 - bs pre - amp alum chassis case 2 unit size
   前级铝机箱2 unit size
3. Pral - 1 - bs pre - amp alum chassis case 1 unit size
   前级铝机箱1 unit size
4. Pral - 2 - bg pre - amp alum chassis case 2 unit size
   前级铝机箱2 unit size

英文释义

名词

1. a double sulphate of aluminum and potassium that is used as an astringent (among other things)
2. a person who has received a degree from a school (high school or college or university)
   同义词：alumnus, alumna, graduate, grad
3. a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
   同义词：potassium alum, potash alum
4. a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
   同义词：ammonia alum, ammonium alum

百科释义

Alum () is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydrated potassium aluminium sulfate (potassium alum) with the formula KAl()2?12.