The following treatment is based on the "mobility" method introduced by booker . 下面的处理方法就是以布克尔所介绍的“迁移率”法为根据的。
2.
Visitors also can see the first two balloons flown in albuquerque in eighteen eighty - two and nineteen oh - seven 游客们也可以观看到分别于1882年和1907年在阿尔布克尔克市的上空飞行的那两个最早的热气球。
