To the concrete structure design degree of security and the standard revision, proposed own opinion.

对混凝土结构设计安全度和规范的修订，提出了自己的见解。

youdao

To the concrete structure design degree of security and the standard revision, proposed own opinion.

对混凝土结构设计安全度和规范的修订，提出了自己的见解。

youdao