例句 /

This paper presents the U-series dating of two calcite samples taken from a tra-avertin layer interstratified in - layer at Locality of Beijing Man Site.

This paper presents the U-series dating of two calcite samples taken from a tra-avertin layer interstratified in - layer at Locality of Beijing Man Site.

本文报道了取于北京猿人遗址第—层的二个钙板样的铀系年龄。