但是，在硝酸盐的周围发现包含氢气的氨，很有可能是来自富含水的外来物体- - -冰冷的彗星。

But ammonium, found along with the nitrates, contains hydrogen that most likely came from an incoming object rich in water - like an icy comet.

youdao

但是，在硝酸盐的周围发现包含氢气的氨，很有可能是来自富含水的外来物体- - -冰冷的彗星。

But ammonium, found along with the nitrates, contains hydrogen that most likely came from an incoming object rich in water - like an icy comet.

youdao