我们是根据已经取得的资料来确定估价的.Our assess ( assessment ) is on the basis of the data acquired.艺术作品 、 历史遗址以及无法估价的史料均遭到残酷的破坏.Works of art, historic monuments and priceless historical records were ruthlessly destroyed.火险保险单分为已估价的和未估价的....

“估价的”的英语可以翻译为：[法] appraised ...