для удобства
• Many of the trivial terms are still used as (a matter of) convenience [or for convenience (sake) (or for the sake of convenience)].
Источник:
Русско-английский научно-технический словарь
на Gufo.me
• Many of the trivial terms are still used as (a matter of) convenience [or for convenience (sake) (or for the sake of convenience)].