... noise reducing surface 吸音/减音道路面层 noise reduction coefficient 噪声降低系数 noise reduction friction course 减音多孔道路面层 ...
基于238个网页-相关网页
... 吸声系数sound absorption coefficient 降噪系数noise reduction coefficient 玻璃棉种类纤维平均直径to ...
基于136个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
The result shows that average absorption coefficient and noise reduction coefficient separately equal to 0.
结果表明材料的平均吸声系数和降噪系数分别达0。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
应用推荐