bimetallic system造句

例句与造句

After a comprehensive analysis of gold-refining furnaces, hearths and other artifacts at the site, Dr . Andrew Ramage, a Cornell archaeologist and associate director of the expedition, concluded, " We can confirm the hypothesis that the Lydians under Croesus initiated the bimetallic system of coinage, and even propose that the Sardis refining installations made this introduction possible ."
It's difficult to find bimetallic system in a sentence. 用bimetallic system造句挺难的