• In the history of human, underground space has already developed in different levels, in particular, western developed countries have obtained better grade on developing underground public space.

    整个人类文明历史中,对地下空间已经不同程度开发特别是西方发达国家更是在地下公共空间开发取得较好成绩

    youdao

  • In the history of human, underground space has already developed in different levels, in particular, western developed countries have obtained better grade on developing underground public space.

    整个人类文明历史中,对地下空间已经不同程度开发特别是西方发达国家更是在地下公共空间开发取得较好成绩

    youdao

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