the early cambrian

常見(jiàn)例句

In South China, the Early Cambrian black rock series is rich in metallic and nonmetallic mineral ersources.
我國(guó)南部早寒武世黑色巖系中，蘊(yùn)藏豐富的金屬和非金屬礦產(chǎn)。
Protoconodonts and conodont-like microfossils are characteristic components in the early Cambrian skeletal faunas.
原牙形類和牙形狀化石是早寒武世微小骨骼化石中非常特征的一個(gè)類群。
Kuanchuanpu biota is the Early Cambrian microfossil which is characterized as an early animal and plant fossil in the southern region of Shaanxi province.
寬川鋪生物群是陜南地區(qū)早寒武世早期一個(gè)以微體動(dòng)、植物化石為特色的生物群。