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1·X-ray astronomy has made impressive progress.

射线天文学已取得了引人注目的进展。

2·I want to discuss a fascinating application that we have in X-ray astronomy.

存在于x射线天文学中的，很令人着迷的应用，即，x射线双星。

3·Laboratory astrophysics measurements are being conducted to address the needs of X-ray astronomy.

正在进行的实验室天体物理测量解决了X射线天文学的一些问题。

4·Japan on Wednesday launched a new generation X-ray astronomy satellite aiming to reveal the structure of the universe and physics at extreme conditions in space.

本周三，日本发射一颗新一代X射线天文卫星，旨在揭示宇宙结构与太空中极端条件下的物理现象。

5·X - ray astronomy has made impressive progress.

射线天文学已取得了引人注目的进展。