The Ares I-X is expected to make an unmanned, two-minute flight at the end of the month to check out basic design concepts and gather engineering data.
为了检验其基本设计理念，同时收集工程数据，预计战神一号X型将在本月底作一次两分钟的无人驾驶飞行。
This section of the paper examines a simple database design in order to introduce some of the key MySQL concepts and some of the basic tasks you can perform in MySQL
为了介绍一些关键的 MySQL 概念以及一些您可以在 MySQL 中执行的基本任务，文章的这一节将讨论一个简单的数据库设计。
There aren't that many concepts associated with basic design psychology, and most are relatively straight-forward and easy to learn.
并没那么多的概念与基本设计心理学相关，而且大多数是相对简单的，很容易学习。设计心理学还是比较容易实现的，虽然有些相对来说需要用多一点细心和规划。
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