за исключением случаев, когда
• Nitrogen content of flue gas is of little significance except insofar as it might be in combination with large amounts of excess air.
• Except when the disks were completely wetted, the liquor rate did not affect the rate of absorption.
• The right-hand side will give zero contributions except when j = i.
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Русско-английский научно-технический словарь
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