Testing receiver's internal noise from zero baseline tests is recognized by many people.
检定接收机内部噪声一般采用零基线法。
The combustion noise control is an important aspect of internal combustion engine noise control.
燃烧噪声控制是内燃机振动与噪声控制领域的一个重要的研究方向。
Straight conjugate internal gear pump is a new kind of hydraulic component with low noise.
直齿共轭内啮合齿轮泵是一种新型低噪声液压元件。
The invention relates to a noise attenuation for an internal combustion engine.
本发明涉及用于内燃机的噪音衰减。
The invention relates to a noise attenuation for an internal combustion engine.
本发明涉及用于内燃机的噪音衰减。
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