length of train meaning in Chinese

连续投弹长
列车长度

Shortly after blackout we were disturbed by an orderly making his way down the length of train with a rattle .
灯火管制开始不久，一个勤务兵顺着列车车身走着，他弄出的嘎拉嘎拉响声惊动了我们。
Shortly after blackout we were disturbed by an orderly making his way lugubriously down the length of train with a rattle .
灯火管制开始了不久，一个勤务兵闷闷不乐地顺着列车车身走着，他出的嘎啦嘎啦的声惊动了我们。
( b ) did the length of training in the smp affect students ' music achievement in college level music courses
自变项分别为学生的音乐训练背景、就读音乐班的长短、以及毕业高中的区域；依变项为音乐课程之成绩。