в то же время
• Certain problems not directly connected with ancient objects and yet important to the archaeologist, ...
• The alloy has high strength for rough service, yet has sufficient machinability ...
• It was difficult to imagine a kind of water that would rigidly exclude ions such as potassium while (or at the same time) readily dissolving glucose and ethyl alcohol.
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Русско-английский научно-технический словарь
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