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... the soil used to build the dam must undergo special treatment, such as frying it with fire, or adding lime and paving it. Repeated compaction after hot soil. Qin people used this technology to lay straight roads, and the seeds could not take root in them, which led to the Qin Zhi road that has been barren for thousands of years, even if no one has maintained it for many years.
However, this kind of soil is not necessarily effective for the levee that needs to be waterproofed. Nick has alw ...
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