Ship transportation inharbor is a subsystem of the transportation at sea.
港口船舶交通是海上交通运输系统的一个子系统。
2
"A ship is safe inharbor, but that's not what ships are for." -william G. T. Shedd.
“船泊停在港湾固然安全，但这并不是船的初衷。”——威廉。G.T。谢德。
3
The results obviously demonstrate wave diffraction inharbor on condition of boundary reflection. Distribution of wave field inharbor is relatively appropriate.