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。
The leakage through the valve causes the pressure drop.
通过阀的泄漏引起的压力降。
Double mechanical seal, No leakage, Can bear higher working pressure.
采用双机械密封，安全无泄漏，可承受更高的工作压力。
No drop in pressure during tests due to leakage.
没有下降压力在测试期间由于漏出。
Lose, basically in high pressure cut-off valve leakage.
保不住，基本上就是高压截止阀发生内漏了。
Lose, basically in high pressure cut-off valve leakage.
保不住，基本上就是高压截止阀发生内漏了。
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