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电离层的形成
释义
电离层的形成
Encyclopedia
理学
电离层的形成
释
formation of the ionosphere
电离层的形成
地球高层大气的分子和原子在太阳的紫外线、X射线和高能粒子的作用下电离,产生自由电子和正负离子,形成从宏观上说仍然是中性的等离子体区域。
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after-loading intracavitary radiotherapy
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Afternoon of a Faun
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after-sales and maintenance services
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After Separation
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after-treatment of chemical fiber
after-treatment of filament
after-treatment of short fiber
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