b horizon meaning in English
淀积层,b层,b带,沉淀层
Examples
- Namely : a horizon > b horizon > c horizon ; 3 . the seasonal regularities of the soil contained total microbe show similitude . the totality mic - robe is more in spring than in autumn
从季节变化可以看出，三大类群微生物的数量及总菌数随季节变化而变化，夏季多于秋冬季。