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微穿孔板吸声体
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微穿孔板吸声体
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微穿孔板吸声体
释
micro-perforated panel sound absorber
微穿孔板吸声体
将穿有小孔的薄板四周密闭地安装在刚性壁面前,穿孔板与壁面之间留有一定深度的空腔而形成的吸收声能、降低声音的构件。
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upfield
upflare
upfloated
upflow
up flow anaerobic reactor
upflow anaerobic sludge blanket
upflow anaerobic sludgeblanket reactor
upgoing wave and downgoing wave
up grinding
upheaval of road pavement
uphill
uphill diffusion
U Pho Latt
upholding morality and using carefully penalization
Uphold Tao and Eliminate Evil
upholstered furniture
upholstery twill silk for picture mounting
UPI
up in the air
Up in the Lakeside Tower
UPJO
up-ladder
up-ladder operator
upland cotton
upland plant
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