в начале
см. тж. на раннем этапе развития
• In the early nineteenth century (or Early in the 19th century) ...
• Early in the crystallization of a melt ...
• Dropping of the leaves occurs at the inception (or beginning) of an unfavourable season.
• He began his career in early 1954.
Источник:
Русско-английский научно-технический словарь
на Gufo.me