We make a comparison in tailpipe noise between straight pipe and muffler, it is seen that there is a sharp peak in low frequent.
通过直管噪声与带消声器的尾管声压级的对比，发现在低频段有一峰值。
Insulation materials of pipe and equipment, muffler materials and adhesives should be noncombustible material.
管道和设备的保温材料、消声材料和粘结剂应为不燃烧材料或难燃烧材料。
For your safety, never approach turning parts, such as fan, belt to avoid cutting, high temperature parts as exhaust pipe, turbo-charger, muffler and radiator to avoid burn when engine is running.
为了您的安全，柴油机在运转时禁止靠近风扇、皮带等旋转部位以免打伤，排气管、增压器、消声器、散热器等高温部位在靠近时防止烫伤。
For your safety, never approach turning parts, such as fan, belt to avoid cutting, high temperature parts as exhaust pipe, turbo-charger, muffler and radiator to avoid burn when engine is running.
为了您的安全，柴油机在运转时禁止靠近风扇、皮带等旋转部位以免打伤，排气管、增压器、消声器、散热器等高温部位在靠近时防止烫伤。
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