But at present there are few special waterproofing materials for concrete bridge decks in China, which can't meet the demand.

但中国目前桥面防水材料严重匮乏，不能满足需求。

youdao

But at present there are few special waterproofing materials for concrete bridge decks in China, which can't meet the demand.

但中国目前桥面防水材料严重匮乏，不能满足需求。

youdao