Gas supply network small, internal leakage less pressure loss.
供气网络小，内部泄漏少，使压力损失降低。
Pump actual work process, their internal leakage there is, also known as slippage.
泵实际工作过程中，其内部存在泄漏，也称滑移量。
The cut-off valve type, the internal leakage is not allowed.
对于截断阀类来说，内漏是不允许的。
The cut-off valve type, the internal leakage is not allowed.
对于截断阀类来说，内漏是不允许的。
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