teer

使用这一方法对闪电放电通道的重构技术可以参看Few and Teer(1974), Nakano(1976)和MacGoman et al.(1981)的文章。声定位的另一种方法被称为雷测距(thunder ranging),这种方法中三个话筒相距较远,一般在公里量级,测得的位置一般误差较大。按照Few(1981)的理论,声信号到达相距100m以上距离的两个话筒时由于传播...

Every year, college students are inspired to help students with their study in underdeveloped areas in china. They have been trying their best to impart knowledge and offering help to those students who are so eager to learn.This volunteer practice has been beneficial in two aspects....