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.
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.
Certain artifactsareespecially vulnerable[becausesome pioneers(in plastic art)didn't always knowhow to mix ingredients properly],saysThea van Oosten, <a polymer chemist>(who,{until retiring a few years ago}, (worked[for decades] [at the Cultural Heritage Agency of the Netherlands]).
[主干1]Certain artifacts are especially vulnerable“某些史前古器物特别脆弱”
[原因状语从句]because some pioneers in plastic art didn't always know how to mix ingredients properly“因为一些塑料艺术的先驱并不总是知道如何恰当地混合成分”
|--[连接词]because
|--[主语]some pioneers
|--[定语]in plastic art
|--[谓语]didn't always know
|--[宾语]how to mix ingredients properly
[主干2]says Thea van Oosten“Thea van Oosten 说”
|--[同位语]a polymer chemist “高分子化学家”
|--[定语从句]who worked for decades at the Cultural Heritage Agency of the Netherlands “他在荷兰文化遗产局工作数十年”
|--[主语]who
|--[谓语]worked
|--[时间状语]for decades
|--[地点状语]at the Cultural Heritage Agency of the Netherlands
|--[插入语] until retiring a few years ago“直到几年前退休”
artifacts 史前古器物
polymer 聚合物即高分子
Cultural Heritage Agency 文化遗产机构
高分子化学家西娅·范·奥斯坦（Thea van Oosten）在荷兰文化遗产局工作了数十年，直到几年前才退休。她说：“某些艺术品尤其脆弱，因为一些塑料艺术的先驱并不总是知道如何正确混合成分。”