When designing FDF system of compact spinning, the negative pressure drops resulting from spindles at the front and back of the machine should be kept within allowance.
在紧密纺大风机系统设计中，车头、车尾各锭的负压差异要保持在允许误差范围之内。
When designing FDF system of compact spinning, the negative pressure drops resulting from spindles at the front and back of the machine should be kept within allowance.
在紧密纺大风机系统设计中，车头、车尾各锭的负压差异要保持在允许误差范围之内。
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