火山熔岩冰洞，是由于表层熔岩和底层熔岩的凝固速度不一样而形成。
Volcano lava ice cavern, formed mainly because of the different solidifying velocities between surface lava and bottom lava.
火山熔岩冰洞，是由于表层熔岩和底层熔岩的凝固速度不一样而形成。
Volcano lava ice cavern, formed mainly because of the different solidifying velocities between surface lava and bottom lava.
应用推荐