marine transport; sea freight
General term for transporting goods or people by sea, used in logistics, trade, and everyday contexts.
This company specializes in marine transport.
Sea freight takes longer than airmail, but it is cheaper.
海運 is the general industry term for shipping, while 海上輸送 is a more literal, technical phrase meaning 'transport over the sea', often used in logistics contexts.
marine transportation route; sea lane
Compound of 海上 (かいじょう, 'on the sea') and 輸送 (ゆそう, 'transport').