滹沱河倒虹吸管身混凝土浇筑属于大体积混凝土浇筑。

Hutuo River's inverted siphon concrete placement belongs to big volume concrete placement.

youdao

滹沱河倒虹吸管身混凝土浇筑属于大体积混凝土浇筑。

Hutuo River's inverted siphon concrete placement belongs to big volume concrete placement.

youdao