本文作者通过实例分析解答平均速度,队伍过桥用时,声音测距、回声测距、激光测距及声音通过同长度不同介质所用的时间,引导读者在读析思试的过程中学得解答机械运动方面所有类型计算题的分析解答技巧,是一篇不可多得机械运动解题方法指导类文章. Through examples, the author analyzes the average speed, team crossing time, sound ranging, echo ranging, laser ranging and sound through the same length of time used in different media to guide readers in the process of analyzing thinking to learn mechanical movement Analysis of all types of questions to explain the skills, is a rare mechanical movement problem-solving method guidance articles.