這是說什麽呢???
所有跟帖:
• 岩石可能含有放射性物質。放射性物質看不見,摸不著。所以,安全起見,需要儀器測一測。 -遠航萬裏- ♂ (0 bytes) () 10/04/2014 postreply 19:52:50
• 岩石可能含有放射性物質。放射性物質看不見,摸不著。所以,安全起見,需要儀器測一測。 -遠航萬裏- ♂ (0 bytes) () 10/04/2014 postreply 19:52:50
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