Underground diaphragm wall had been great used in enclosure structure of subway and deep foundation.
地下连续墙在地铁及深基坑的围护结构中已广泛使用。
The purpose of this enclosure remains as mysterious as this whole structure.
这种包围的意图正如整个结构一样让人摸不着头脑。
The purpose of this enclosure remains as mysterious as this whole structure.
这种包围的意图正如整个结构一样让人摸不着头脑。
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