可互换的基础,可互换基础;
Ammonium nitrogen had no significantly correlated with pH value, total exchangeable bases and exchangeable acidity.
铵态氮与土壤pH值、交换性盐基总量、交换性酸含量均不相关。
纳米英语 · 双语娱乐资讯
纳米英语 · 英语词汇
纳米英语 · 外贸英语