Haversian canal

例句：

1. 1. The Haversiancanal is a crucial waterway forthe region's agriculture.
   哈弗斯运河是该地区农业的重要水道。
2. 2. Theconstruction of the Haversian canalwas a significant achievement in engineering history.
   哈弗斯运河的建设是工程史上的重大成就。
3. 3. The Haversian canal connects two major cities in the region,facilitating trade and transportation.
   哈弗斯运河将该地区的两个主要城市连接起来，促进了贸易和交通。