大家都搜：
重返大气层问题
1、problem───n.难题；引起麻烦的人；adj.成问题的；难处理的
2、re re───回复
3、entry───n.进入；入口；条目；登记；报关手续；对土地的侵占
4、re entry───n.[航]再入；再进
5、re───prep.（用于公函起首介绍主题或回复邮件）关于，兹就；n.来 (C)
6、no entry───不准入内；禁止通行
7、entry data───[计]入口数据
8、address problem───DiZhi问题
9、housing problem───住房问题；房屋问题
1、We all know the benefits of the use of IRP is to: improve the efficiency of interrupt-level requirements of a broader, and also solve the common problem of re-entry and so on.───大家都知道使用IRP的好处就是：效率提高了，对中断级要求更宽了，还解决了常见的重入问题等等。
2、Both organisations would also have the chance to address the problem of a higher re-entry speed which is accumulated on trips further away from the Earth.───这两个组织也有可能想出办法解决更高的行进速度，这样就能去到离地球更远的地方。
3、The first was the re-entry problem, which came to the forefront during the mid-1950s.───第一个领域是重返大气层问题，在50年代中期这成为一个前沿课题。