concussion compaction的用法和樣例：
例句
- The principle and effect of impact compaction, and its application in rockfill subgrade is introduced in this paper.
並對衝擊壓實的作用原理，壓實功效以及衝擊壓實在填石路基中的應用作了介紹。 - It is concluded that the impact compaction technology is effective and practical for treatment of collapsible loess subgrade.
因此，衝擊壓實技術在處治濕陷性黃土地基中是有效的和實用的，而且生產效率高，有很好的發展和應用前景。
