所有国土空间用途管制 the state’s supervision and management of the natural resources within its territory

国土空间开发保护制度 system for developing and protecting China's geographical space

混凝土空心板 concrete core unit ; concrete core slab ; concrete core slbelly

混凝土空心砌块 concrete hollow corner ; Hollow concrete block

粘土空心砖 hollow clay tile ; hollow clay brick

钢筋混凝土空心板 reinforced concrete hollow slab

国土防空型 territorial air defense

粘土空中 clay floor

土耳其航空 Turkish Airlines ; TK ; THY ; TK Turkey airlines

预应力混凝土空心板 Prestressed concrete hollow-core slabs ; prestressed concrete hollow slabs