| 释义 |
Ashby
Ashby[′ash·bē] (geology) A North American stage of Middle Ordovician geologic time, forming the upper subdivision of Chazyan, and lying above Marmor and below Porterfield. Ashby
Ash·by (ash'bē), Winifred, British hematologist, 1879-1975. See: Ashby method. |