The phrase "a main transfer" is correct and usable in written English.
It can be used in contexts where you are referring to a primary or significant transfer of something, such as data, funds, or responsibilities.
Example: "The project requires a main transfer of data from the old system to the new one to ensure continuity."
Alternatives: "a primary transfer" or "a key transfer".
Circuitry and performance diagrams, also a circuit architecture for the main transfer medium component, the message signal switching sector have been given.
In nuclear reactors, natural circulation can be used as a passive safety system or as a main heat transfer mechanism.
The Anfield club have not added to their ranks in the January window and lost out on their main transfer target when Chelsea gazumped an offer for the Basel winger Salah.
One of the main transfer sagas of the summer in Luis Suarez could come to a conclusion with Arsenal set to make a new bid of £40m.
Chelsea are keen to make an appointment well before the summer in order not to miss out on their main transfer targets.
The derailment affected two of Metro's main transfer points, L'Enfant and Metro Center, forcing many passengers onto crowded shuttle buses.
And finally, after Edinson Cavani packed his bags and headed for Paris; Jose Mourinho lost one of his main transfer targets for this summer.
Despite its central location in the region -- it is the main transfer point for the Bay Area Rapid Transit system -- it was also largely characterized by deteriorating buildings and failing stores.
Swollen by the sales of Fábregas, for £30m, Nasri (£24m) and Clichy (£7m), Arsenal declared a pre-tax profit of £49.5m for the six month period, compared with a loss of £5.9m for the similar period in 2010, when the £10m signing of Laurent Koscielny was Arsène Wenger's main transfer business.
Mané, a product of the Metz academy who moved to St Mary's in 2014 for around £12m, emerged as Liverpool's main transfer target after Jürgen Klopp was frustrated in his attempts to lure his primary target, Mario Götze, from Bayern Munich.
