All of his 1905papers unraveled problems being worked on,这里的
1个回答

① being worked on正是修饰problems的定语.

② 全局的结构是:

(All of his 1905 papers) (unraveled) (problems being worked on,with mixed success ,by other scientists).

分别对应的是:主、谓、宾.

③ 译文:

他1905年(撰写或发表)的全部论文都揭示了所研究及取得成果的课题都有其他科学家的(共同)参与.

注:这里的“他”是Albert Einstein.