| 1. | X-ray astronomy has made impressive progress .
X射線天文學已取得了引人注目的進展。
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| 2. | The distinct processes are involved in x-ray emission .
X射線的發射，包含不同的過程。
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| 3. | The x-ray was very revealing .
X射線十分揭示問題。
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| 4. | In x-ray fluorescence, pieces of the filter are used directly .
在X射線熒光法中，可直接使用濾紙。
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| 5. | Cygnus x-3 is a binary x-ray source located at a distance of 10kpc .
天鵝座X-3是一個距離約10千秒差距的雙重X射線源。
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| 6. | Scientists photograph these images to produce the spectacular x-ray pictures .
科學家們對這些圖像進行攝影，制成壯觀的X射線圖。
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| 7. | They use x-ray diffraction to determine the structures of proteins and nucleic acids .
他們應用X-射線衍射確定蛋白質和核酸的結構。
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| 8. | A high beam energy is also used to stimulate x-ray emission of higher-energy peaks .
高能量電子束也能用來激發高能量X射線峰的發射。
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| 9. | With radio and x-ray telescopes, we find many signs of violent activity .
依靠射電望遠鏡和x射線望遠鏡，我們發現了許多迅猛活動的跡象。
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| 10. | Contribute a little to either ultra-violet astronomy or x-ray astronomy .
所以氣球攜帶的儀器對紫外線天文學或Ｘ射線天文學的貢獻是不大的。
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