These facilities also must be adaptable, economical with respect to construction, maintenance and operations, and embody timeless design.
这些设施在建设、维护和运营方面也必须具备适应性和经济性，并体现永恒的设计。
These facilities also must be adaptable, economical with respect to construction, maintenance and operations, and embody timeless design.
这些设施在建设、维护和运营方面也必须具备适应性和经济性，并体现永恒的设计。
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