rocketry的精选

当前位置 /首页/rocketry的精选/列表
用“rocketry”造句大全，rocketry造句

用“rocketry”造句大全，rocketry造句

2018-01-26
Theirresearchinrocketryblazedthewayforspacetravel.PhysicistRobertGoddard,rocketrypioneer,standsnexttooneofhisexperimentalA-seriesrocketsinfrontofhisworkshopinRoswell,NewMexico,inthe1930s.MrWhitehornan...