RATE THE NOISE OF UNDUCTED HVAC EQUIPMENT BY THIS SIMPLE STEP-BY-STEP PROCEDURE.

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作者：
Constance, John D.
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来源：
Power | 1974年 / 118卷 / 02期
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摘要：
A method for relating industrial plant noise level requirements to the sound power levels reported by manufacturers of heating, ventilating, and air conditioning units, combines the effects of room size and configuration, sound-absorption characteristics and distance of occupant from sound source.
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页码：70 / 71
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