It is very important to determine reasonably the maximum grain size, graded sizes and gradation of the coarse aggregate.

合理确定最大粒径、分级尺寸和级配十分重要。

youdao

It is very important to determine reasonably the maximum grain size, graded sizes and gradation of the coarse aggregate.

合理确定最大粒径、分级尺寸和级配十分重要。

youdao