ултраљубичасто зрачењe

ултраљубичасто зрачењe

The invisible electromagnetic radiation beyond the violet end of the spectrum of visible light, of wavelengths ranging, roughly, from 4000 down to 400 angstroms.

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نوع المصطلح: اسم
المرادف (المرادفات)
مسرد المصطلحات
المجال / النطاق: علم الفلك
الفئة: المريخ
Company: NASA
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The amount of matter in a body, which should not be confused with weight. The same object will have different weights in space and earth but the mass remains constant.

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A gas used by all green plants and recycled by them to form wood and the oxygen we breathe. In very large quantities it can be poisonous to animal life.

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The amount of matter in a unit volume of a substance; usually the mass per unit of volume.

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Dragan Zivanovic

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متابعين

المجال / النطاق: فضاء الفئة: رحلة الفضاء

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A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first ...