distance covered meaning in Chinese

所走距离

Training should be gradual . the distances covered in training should be increased over several months
训练应循序渐进.训练(跑)的距离应在几个月内逐渐增加
If one sails round singapore , keeping close to the coast , what will be the approximate distance covered
如果环绕新加坡航行，尽量接近海岸线，行进的路程约为多少？
The sketch of the mathematical modeling for the calcalation of the distance covered by an airline is discribed . some comments to the answer paper for the problem c of 2000 china undergraduate mcm are given
本文对飞机航线飞行距离计算的数学模型进行了概述，并对2000年全国大学生数学建模竞赛的c题答卷进行了评述