紧迫局面 meaning in Chinese

close quarters situation
closequarters situation

Study on the mathematical model of close - quarters situation
紧迫局面的数学模型
The third chapter is the highlight of the text which focuses on the analysis of the classical colliding case at the " crossing situation " , calculating the distance between two vessels in the state of " involving risk of collision " , approaching a " close - quarters situation " and the " immediate danger situation " through the mathematical model , the thesis sums up the lessons and the prevention of the colliding accidents in every stage at the " crossing situation " by combining with the qualitative analysis , and puts forth a series of methods for avoiding collision aim at three different patterns at the " crossing situation "
包括三个阶段计算临界值数学模型的建立。第三篇是本文的重点，主要对典型交叉相遇碰撞事故进行了分析。通过相应的数学模型计算出两船碰撞危险形成时机，紧迫局面与紧迫危险形成时的两船距离，结合定性分析来总结每一交叉态势碰撞事故的教训与预防，并提出了一系列针对三种不同交叉态势的不同避碰方法。