The sensitivity analysis shows that the express shipping service will be more necessary when the average value of shipping freight in the market increases 而当航线货运市场中，高时间价值货种的货柜量占总货柜量的比率愈高时，海运公司提供复合快速运送的市场利基愈大，可订定的海运差别定价愈高。
2.
On the basis of cybernetics through forecast roll and pitch of a ship and by adjusting the object ' s space position and keep its horizontal state without limit of actual sea state according to the control rules with the predictive value of ship ' s roll angle and pitch angle 应用控制理论通过预测随机海浪扰动下船舶的横摇、纵摇运动的摇角值，按照所设计的控制规律实现在不受实际海况限制的情况下调整船上物体的空间位置，使此物体保持水平状态的目的。
