At this point the material becomes more porous, increasing its surface area and its hydrogen-storing capacity.

这时候，材料出现了更多微孔，从而增加了表面面积和储氢空间。

youdao

At this point the material becomes more porous, increasing its surface area and its hydrogen-storing capacity.

这时候，材料出现了更多微孔，从而增加了表面面积和储氢空间。

youdao