消声措施主要用于控制A.流体动力性噪声B.机械性噪声C.电磁性噪声D.高频噪声E.中、低频噪声

作者: rantiku 人气: - 评论: 0
问题 消声措施主要用于控制
选项 A.流体动力性噪声 B.机械性噪声 C.电磁性噪声 D.高频噪声 E.中、低频噪声
答案 A
解析

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