commercial centre短语⁷²⁴²⁰ 基本例句 商业中心 Based on the example of a large commercial centre underground construction in Shanghai, this paper provides further discussion to demonstrate the advantages of using the block segmentation method. 分别从工艺特点、基坑围护结构设计、施工方法等介绍了分块施工法的技术要求和注意事项。 shigongjishu