The Ordovician lithofacies and biofacies change greatly at different localities of the Yangtze Region, South China.华南扬子区不同地点奥陶纪的岩相 、 生物相变化显著....

biofacies的音标：biofacies的英式发音音标为：['bɪəfəʃɪz]biofacies的美式发音音标为：['bɪrfəʃɪz]...

n.生物相...