密西西比河流域与五大湖之间唯一的纽带是人工挖掘的芝加哥环境卫生和航行运河，它连接于密歇根湖与伊利诺斯河之间。
The Mississippi River system and the Great Lakes are connected only through the man-made Chicago Sanitary and Ship Canal, which leads from Lake Michigan to the Illinois River.
其次，按规划年对杭甬运河进行运量预测，并提出运河的通航标准与适合运河航行的船型方案。
Secondly, the planned transport volume predicted for years to Hangyong canal and the proposed canal to canal navigation standards and navigation models.
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