The natural and navigable underground river flows for 8.2km and is believed to be the longest in the world .
天然可通航的地下河蜿蜒8.2公里,被认为是世界上最长的地下河。
Police said the boat was severely overloaded , while the fast-flowing navigable waters .
警方说,当时这艘船严重超载,而航行水域水流湍急。
But what petitioners now have is a body of water that was private property under hawaiian law , linked to navigable water by a channel dredged by them with the consent of the respondent .
The deeper part of a river or harbor , especially a deep navigable passage .
深水航道河流或港湾较深部分,尤指深水航道。
The intent of the vessel collision provisions is to minimize the risk of catastrophic failure of bridges crossing navigable waterways due to collisions by aberrant vessels .