is the air around the Darvaza gas crater safe? No sulfur?

来源: xia23 于 2023-09-01 06:58:15 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.