Also, the insulation was replaced to achieve equivalent quality of new houses as to meet the 4th grade energy saving performance evaluation program requirements in Japan.
隔热材料也被替换，使其具有与新住宅相同的质量，符合日本4级能源节约表现评价项目的要求。
High-grade passenger car abroad adopts floating floor with high performance of vibration absorption and sound insulation.
国外高档客车均采用浮筑地板，浮筑地板具有良好的减振、隔声性能。
High-grade passenger car abroad adopts floating floor with high performance of vibration absorption and sound insulation.
国外高档客车均采用浮筑地板，浮筑地板具有良好的减振、隔声性能。
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