alkali
n. 碱
名词复数：alkalis
近义词：base，
英英释义
Noun
- any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water;
"bases include oxides and hydroxides of metals and ammonia"
- a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
例句
用作名词(n.)
- This kind of soil contains much alkali.这种土壤含碱丰富。
- The key problem is to overcome alkali in the soil.关键在于控制土壤里的碱分。
- Acid and alkali are the basic concept of chemistry.酸和碱是化学的基本概念。
- Such detergents do not yellow the wool as alkali tends to do.这种洗涤剂不会象碱那样使羊毛发黄。