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产品噪声标准
释义
产品噪声标准
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工学
产品噪声标准
释
product noise standard
产品噪声标准
为减少产品使用中噪声对环境以及使用者的影响,促进产品质量提高,对产品的声音排放特性指标所作出的法规性技术规定。通常用A计权的声功率级或声压级表示,需要按规定的方法进行测量。
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unitary linear transformation
unitary mapping
unitary matrix
unitary matrix model
unitary modular group
unitary module
unitary multiperfect number
unitary multiplet
unitary multiplicative character
unitary operator
unitary organism
unitary perfect number
unitary polarity group
unitary positive operator
unitary projective representation
unitary reflection
unitary representation
unitary representation of locally compact groups
unitary representations of locally compact group
unitary restriction
unitary right module
unitary ring
unitary ring; ring with identity
unitary R-module
unitary sampling
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