³Ôº£ÏʳԳö×ÏÕäÖé ³Æ°ÑÕäÖé×ö³ÉÏîÁ´

ÂÛ̳³ö´¦£ºÎ÷½Íø
×÷Õߣº
ʱ¼ä £º2016-02-25


Î÷±±µØÖÊʵÑéÊÒ(Northwest Geological Laboratory)µÄ¶ûÎÂ(Ted Irwin)ÈÏΪ£¬Õâ¿ÅÕäÖéÏ൱º±¼û¡£

Äú¿ÉÄܶÔÕâЩÌû×Ó¸ÐÐËȤ

¾­µäͼƬ

ÿÈÕ¾«Ñ¡