n.碱浓度；碱性
As a result,soil alkalinity rose and farmland lay barren. 结果,土壤中的碱份增多,农田成了不毛之地。
There is a possibility that alkalinity of ash is related to fiber fineness. 灰分的碱度可能与纤维的细度有关。
The alkalinity of water is a measure of its capacity to neutralize acids. 水的碱性是它中和酸的能力的一种量度。
