张钰哲致力于观察和计算小行星和彗星的轨道。
He devoted himself to observing and calculating the orbits of minor planets and comets.
1946年至1948年张钰哲去美国做访问学者，研究变星。
From 1946 to 1948 he once again went to the United States to study variable stars.
在张钰事件中，黄建中导演说，他当时已经喝醉了，记不清当时发生的一切。
In Zhang's case, director Huang Jianzhong, said that he was drunk and could not remember what had happened.
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