该文以广东省佛山市顺德区碧桂路污水管的安装为实例，介绍了其安装过程。
Taking the installation of the sewage pipeline in Bigui Road of Shunde District in Foshan City Guangdong Province as an example, the article introduces its installing process.
并证实其原岩是与本区未变质的火山岩类相同的一套细碧-石英角斑岩系。
We con-firm that the original rocks are identical with the volcanic rocks in this area.
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