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WHICH指代什么?是porosity 还是permeability?

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/10 07:19:04
WHICH指代什么?是porosity 还是permeability?
the proportion of empty space in a rock is known as its porosity.But note that porosity is not the same as permeability,which measures the ease with which water can flow through a material;
porosity
再问: 为什么?
再答: porosity是 主语
再问: 没有逗号,就是permeability了吗?
再答: 对的
再问: 没有逗号,就是permeability了吗?