Lock the exhaust valve in its open position.
把排气阀固定在它开启的位置。
It is not necessary to open this valve to the full open position to provide full flow to the process.
必须把阀门开到完全开启的位置，以提供完全的流通。
This manually forces the valve to a wide open position for maximum flow.
这就人工强迫阀门开得更大以实现流量最大。
Failure position of valve shall be open.
故障时阀门位置为打开。
Failure position of valve shall be open.
故障时阀门位置为打开。
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