短語詞組短語launching - pad 發(fā)射臺floating launching pad 浮動發(fā)射坪rocket launching pad 火箭發(fā)射臺vertical launching pad 垂直發(fā)射坪launching pad leveling mechanism 發(fā)射臺調(diào)平機搆THE LAUNCHING PAD 通天塔launching pad chief 發(fā)射班長a launching pad 發(fā)射臺 返回 launching pad