主要问题是建造成本。

The problem is getting them built.

youdao

并介绍了模块化施工方式及使设计与施工进一步密切结合以降低建造成本的可能。

Modular construction approach and design for constructability are discussed in the paper as viable mean...

youdao

管网合理的规划布局不仅可以大大降低系统的建造成本，而且还可以降低运行成本。

Comparable perfect layout of the system can lead to less construction and circulate cost.

youdao

管网合理的规划布局不仅可以大大降低系统的建造成本，而且还可以降低运行成本。

Comparable perfect layout of the system can lead to less construction and circulate cost.

youdao