由于航材缺件，为判断故障，左右发对串引气调节器，试车检查右发引气压力正常。
Due lack parts, for troubleshooting, interchanged bleed air regulator of R engine with L engine, running-up test normal.
由于航材缺件，为判断故障，左右发对串引气调节器，试车检查右发引气压力正常。
Due lack parts, for troubleshooting, interchanged bleed air regulator of R engine with L engine, running-up test normal.
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