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
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