unfossiliferous的中文翻译

unfossiliferous

英[] 美[]

1. The primary section of the formation is unfossiliferous. It remains uncertain whether its geological age is Eocene or Oligocene.: 本文证实它是西露天组的一部分，是西露天组上部地层的相变，其时代应和西露天组相同。

2. The primary section of the formation is unfossiliferous. It remains uncertain whether its geological age is Eocene or Oligocene.: 本文证实它是西露天组的一部分，是西露天组上部地层的相变，其时代应和西露天组相同。