A pterosaur (Pterosauria) first discovered in 1975 in Texas. It was huge, with a wing‐span of 10m or more, and lived as do vultures, using warm air thermals to soar high over the Cretaceous plains.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。