这氦气不能从空气中分离吗? 感觉上应该不那么难吧。国内被卡脖子，才能自力更生

来源: FollowNature 于 2020-11-01 05:57:00 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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