电动机在空载时测得的振动速度有效值不超过表5的规定。
The affective value of vibration speed measured under non-load operation shall not exceed those specified in Table 5.
振动用加速度有效值描述，噪声以声压级表示。
The vibration is characterized by the virtual value of acceleration, and the noise is indicated by the sound-pressure-level.
振动用加速度有效值描述，噪声以声压级表示。
The vibration is characterized by the virtual value of acceleration, and the noise is indicated by the sound-pressure-level.
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