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- Sound generation, sound dispersion and sound proofing in heat pumps
- rs VDI 3731, Sheet 2 [[planning:building_services:heating_and_dhw:heating:heat_pumps#literature|[VDI 3731] ]]. The following sections deal with the subject of the s... connected with it: [[planning:building_services:heating_and_dhw:heating:heat_pumps:Excitation sources in heat pumps]] {{:picopen:members_only.png?25|}} [[planni