Navigation Channels
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https://www.fisheries.noaa.gov/inport/item/66151
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资源简介：
This layer shows coastal channels and waterways that are maintained and surveyed by the U.S. Army Corps of Engineers. These channels are necessary transportation systems that serve economic and national security interests. The possibility of silting is always present. Local authorities should be consulted for the controlling depth. NOAA Charts frequently show controlling depths in a table, whic...
本层展示了由美国陆军工程兵团维护和测量的海岸航道和水道。这些航道是服务于经济和国防安全利益的重要交通系统。淤积的可能性始终存在。对于控制深度，应咨询当地当局。NOAA海图通常会以表格形式展示控制深度，其中...
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InPort
