The results show that(1) Vapour condensation occurs in ejector nozzles as well as at the regions just downstream the nozzle exit.

结果表明：（1）水蒸汽凝结主要发生在引射喷管和喷管出口膨胀区中。

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As compared with the interruption when PTFE vapour is ignored, the influence of PTFE vapour on the characteristics of nozzle arc is obtained.

通过与不考虑PTFE蒸气影响的开断过程的模拟结果相比较，得到了PTFE蒸气对喷口电弧特性影响的结果。

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