alien structure

• 外界构筑物

alien structure的用法和样例：

例句

1. The pipe-shaped structure is arranged as a huge crisscrossed network.
   管状构筑物在建筑内部纵横交错，编织成一个巨大的网络。
2. During demolition the integrity and stability of the remaining structure must be maintained wherever there is access for personnel.
   拆除过程中在供人员进出的通道处，必须保持其余留构筑物的完整性和稳定性。