Русско-английский научно-технический словарь
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• In all modern furnaces a double bell and a hopper are used to conserve the large volume of gas which ...
• The angular momentum of this star would be conserved until the final stages of collapse.
• This material maintains low loss characteristics throughout the entire spectrum.
• The liquid metal retains (or preserves) its silver colour.
• The material retains its properties over a wide temperature range.