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类型：纪录片 地区：加拿大 年份：2021

主演：内详  

导演：内详  

更新：2024-05-28 22:18:59

简介： If Chinese companies want to develop their own technology, unless they are in some quite unpopular industries, otherwise, in most popular industries and important materials, biology, medicine and other industries, as long as they do research, they will encounter others. patent barriers... 详情