先进的技术和经济的作业方式使液压高速夯实机具有高效性，可广泛运用于多种松软土壤和回填土壤。
Rapid Impact Compactor provides a technically sound and economic method of improving the capacity of a wide variety of loose soils and fills.
现在，我们发现它可以改变土壤的结构，使土壤变得更松软。
Now we find that it's changed the structure of the soil, and made it much softer.
理想的河岸边土壤很松软，这些鸟可以很轻松的用自己喙去凿出适合做窝的地洞。
The ideal riverbank is crumbly enough for the birds to excavate a nesting burrow with their beaks.
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