см. тж. относить ~
• This multiplexing provides more input channels but at a sacrifice in ( or at the sacrifice of ) frequency response of each channel.
• The thrust is increased at the cost ( or penalty ) of an increase in specific fuel consumption.
• Ethylene production increases at the expense of the higher molecular weight olefins.
• Such power has not been obtained at the expense ( or sacrifice ) of reliability.
• Losses through evaporation are regarded as trifling.
• Increasing the chromium content results in improved corrosion resistance to scaling, but with some sacrifice in other properties.