Propulsion is the power that moves something, especially a vehicle, in a forward direction. (FORMAL)
Interest in jet ~ was now growing at the Air Ministry.
N-UNCOUNT: oft n N, N n
Propulsion is the power that moves something, especially a vehicle, in a forward direction. (FORMAL)
Interest in jet ~ was now growing at the Air Ministry.
N-UNCOUNT: oft n N, N n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012