Повышение энергетической эффективности вентиляционно-отопительных систем. Принцип энергоаудита

Повышение энергетической эффективности вентиляционно-отопительных систем. Принцип энергоаудита

87 Pages · 2003 · 8.9 MB · Russian
by Щекiн I.P.
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“ When you talk, you are only repeating what you already know. But if you listen, you may learn something new. ” ― Dalai Lama
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