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双层结构隔声
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双层结构隔声
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工学
双层结构隔声
释
insulation of bilayer structure
双层结构隔声
两个互不连接的单层构件(之间有空气层或吸声材料)组成阻隔噪声的双层结构。
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coal plough
coal preparation
coal preparation system of circulating fluidized bed boiler
coal pre-prospecting
coal production
coal prospecting
coal pulverized system
coal pulverize maintenance
coal pyrolysis
coal quality analysis
coal quality evaluation
coal quality physical testing
coal rank
coal reaction
coal remote sensing geological survey
coal reservoin resilience
coal reservoir
coal reservoir gas saturation
coal reservoir permeability
coal reservoir pressure
coal resistance to heat
coal resources of China
coal-rich zone
Coalsack Dark Nebula
Coalsack Nebula
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