It includes narrowband images recorded using filters sensitive to emission from oxygen atoms, shown in blue-green hues, and hydrogen atoms in red.
图中包括了使用对氧原子放射物敏感的过滤器记录的窄频带图像,以蓝绿色表示,而氢原子以红色表示。
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Environmentalists prefer "green vacations." These trips allow them to observe flora and fauna up-close without disturbing the sensitive balance of nature.