ChinaAutoRegs｜GB/T 40578-2021 英文版翻译/轻型汽车多工况行驶车外噪声测量方法
Measurement methods for noise emitted by light-duty vehicles in multiple driving mode conditions
GB/T 40578-2021英文版翻译 轻型汽车多工况行驶车外噪声测量方法
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ChinaAutoRegs｜GB/T 40578-2021 英文版翻译/轻型汽车多工况行驶车外噪声测量方法
Measurement methods for noise emitted by light-duty vehicles in multiple driving mode conditions