Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/7bd9e63e2f73f69e67f7d9ce85a83c96.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 molar-tooth structures例句_molar-tooth structures英汉例句_molar-tooth structures双解例句_沉淀汉英词典
Stromatolite and molar-tooth structures are two kinds of peculiar Precambrian sedimentary phenomena, attracting great attention from geologists. 曡層石和臼齒搆造是前寒武紀較爲引人注目的兩種沉積現象。 chazidian.com