с уменьшением

см. тж. в уменьшенном масштабе; по мере того как; с увеличением

The free period of the accelerometer decreases as the mass is reduced (or with reduction in the mass).

Note how rapidly the volume must increase as the pressure is reduced [or with decreasing (or decreased) pressure].

Источник: Русско-английский научно-технический словарь на Gufo.me