1.前言宁宙开发事业团自1969年10月成立以来研制了N—Ⅰ、N—Ⅱ、H—Ⅰ等各种型号火箭(见图1),从1975年9月9日发射的技术试验卫星“菊花1号”开始,到现在已经用N-Ⅰ和N-Ⅱ火箭成功地发射了10余颗人造卫星,进而,朝着1985年H-Ⅰ火箭实用化发展,目前它的研制工作正在取得可喜的进展。三菱重工业公司承担了这些火箭的推进剂贮箱和发动机等的研制和组装或者火箭的发射等项工作。 1. Introduction The NingXia Development Corps has developed various types of rockets (see Figure 1) such as N-I, N-II and H-I since its establishment in October 1969, and has conducted technical tests since September 9, 1975 Satellite “Chrysanthemum 1” began, and has now successfully launched more than 10 satellite satellites with N-I and N-II rockets. Furthermore, as the 1985 H-1 rocket has been in practical use, its development is currently under way Made gratifying progress. Mitsubishi heavy industries bear these rocket propellant tanks and engines such as the development and assembly or launch of rocket and other work.