Warning: file_put_contents(): Only 0 of 6886 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 molar-tooth structures是什么意思，molar-tooth structures的翻译，molar-tooth structures音标、读音、用法和例句_94生活常识网有道词典
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