см. тж. изменяться ~ ; обратно ~ ; прямо ~
• This increases the rate of hydrolysis in proportion to the concentration of ...
• The density decreases as (p)~ 1/2 .
• The force of ... varies directly with the first power of distance.
• For oils of greater viscosity at atmospheric temperatures, the distances should be reduced in proportion .
• The voltage will vary proportionally ( or in proportion ) to ...
• If dy/dx varies proportionally with y , ...
• The duties vary proportionately with the speed of the main engine.