Certain artifacts are especially vulnerable because some pioneers in plastic art didn't always know how to mix ingredients properly, says Thea van Oosten, a polymer chemist who, until retiring a few years ago, worked for decades at the Cultural Heritage Agency of the Netherlands.
某些文物尤其脆弱，因为一些塑料艺术的先驱者并不总是懂得如何正确地混合原料，荷兰文化 heritage 机构的聚合物化学家 Thea van Oosten 说，她几年前退休前一直在该机构工作了数十年。
Joana Lia Ferreira, an assistant professor of conservation and restoration at the NOVA School of Science and Technology, notes that archaeologists first defined the great material ages of human history—Stone Age, Iron Age, and so on—after examining artifacts in museums.
新大学科学与技术学院的文物保护与修复助理教授Joana Lia Ferreira指出，考古学家最初是在博物馆中研究文物后，才定义了人类历史上的主要材料时代——石器时代、铁器时代等等。
obtaining durable plastic artifacts
获取耐用的塑料制品
Visit any antiques store and you'll encounter artifacts from the past: photographs, letters, a brochure detailing the Sinclair dinosaur exhibit from the 1964—65 World's Fair, the ephemera of history.
走进任何一家古董店，你都会看到来自过去的物品：照片、信件，还有1964—65年世界博览会期间关于辛克莱尔恐龙展览的宣传册，这些都是历史的短暂痕迹。
Have you pondered the life cycle of intangible formats, digital information, given that those who produce these artifacts seldom make provision for their long-term preservation?
你是否曾思考过无形格式和数字信息的生命周期？毕竟，这些物品的制作者很少为它们的长期保存做出安排。
例句取自历年考研英语真题，翻译为机器生成，仅供学习参考。