to start sth moving :
They set the machinery in motion.
( figurative )
The wheels of change have been set in motion.
to start sth moving :
They set the machinery in motion.
( figurative )
The wheels of change have been set in motion.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005