What is the meaning of 刚一通过 here please?
刚一
ABC

ADV. (副词)
just when; as soon as

CC-CEDICT

1 to be just about to
2 to have just started to

KEY

as soon as

当年，《中华人民共和国商标法》刚一通过，美国的《读者文摘》就立即为其中文文版《读者文摘》注册，并得到了相关部门的批准。
At that time, just when the &quot;Trademark Law of the People’s Republic of China&quot; was passed &quot;Reader's Digest&quot;, as American company, immediately registered the Chinese version of it's publication (读者文摘) and received approval from all relative departments.