Under the development of containerization, the stratagem of main stem and lateral model has been taken by all the big container liner companies in order to adapt to the economy of scale demands.

• 随着集装箱运输业的发展，大型航运企业纷纷采取干支线班轮运输方式，以资充分发挥大型集装箱船舶的规模经济性。