对遇局面 meaning in English

head on situation
headon situation

The research works of this paper can be mainly demonstrated in the following aspects : 1 new model of dangerous degree of collision avoidance ( ddca ) was studied to determinate the best scheme of collision avoidance ; 2 ten factors , which affect the avoiding effect , were discussed in details ; 3 changing rules of dcpa and tcpa were discussed , according to the international collision avoidance rules at sea , under the following three circumstances : cross situation , head on situation , as well as overtake situation ; 4 to focus the discussion on cross situation
2 、确定影响避让效果的十大因素，将其产生的影响以行动时机提前量来消除。 3 、将船舶会遇局面按国际海上避碰规则所划分的交叉相遇局面、对遇局面、追越局面三种局面分别讨论dcpa和tcpa及其变化规律，结合船舶碰撞危险度评价并确立最佳避让方案。 4 、将交叉相遇局面作为本文的研究重点，对遇局面和追越局面可以视作交叉相遇局面的特殊情况来处理。