unchangeable humus是什么意思 unchangeable humus怎么读
unchangeable humus的相关资料
UNabbr.(=United Nations) 联合国pron.<口>人，事物，家伙，东西
unjointv.解开结子；拆开连结处
unchangeable humus的用法和样例
- The lack of humus and the excessive leaching make this soil almost useless for agricultural purpose.
缺少腐殖质和过度淋滤使这种土壤对农业几乎无用。 - The humus properties and mineral composition of clay have the distinct features of zonality.
腐殖质性质及矿物组成具有明显的地带性烙印。
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