If the distance to the 60-foot contour is 10 miles across a continental shelf area or an estuary, the port will be able to accommodate all general cargo vessels and some bulk carriers but not large tankers or bulk carriers of draughts exceeding 50 feet.是什么意思_If the distance to the 60-foot contour is 10 miles across a continental shelf area or an estuary, the port will be able to accommodate all general cargo vessels and some bulk carriers but not large tankers or bulk carriers of draughts exceeding 50 feet.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句