C 5 Axial Jet N o i s e Source D i s t r i b u t i o n D e v e l o p e d for S p e c i f i cE n g i n e s T e s t e d at the P&WA F a c i l i t y
标准号：AIR1672
标准名称： Practical Methods to Obtain Free-Field Sound Pressure Levels
from Acoustical Measurements Over Ground Surfaces
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