(~s)
A ~ is a unit of measurement which is used to indicate how loud a sound is.
Continuous exposure to sound above 80 ~s could be harmful.
N-COUNT: oft num N
(~s)
A ~ is a unit of measurement which is used to indicate how loud a sound is.
Continuous exposure to sound above 80 ~s could be harmful.
N-COUNT: oft num N
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012