As additional project, 1b Lot includes reconstruction and plugging of diversion tunnel.

作为新增项目，1B标承担了导流洞封堵的改建和封堵工作。

youdao

As additional project, 1b Lot includes reconstruction and plugging of diversion tunnel.

作为新增项目，1B标承担了导流洞封堵的改建和封堵工作。

youdao