如果飞机已接通外部电源，检查引气系统页面，确保该页面上的流量控制活门状态、组件流量数据、组件温度数据位置没有全部显示为黄色的“XX”。
If the airplane is powered up by external power, it is necessary to check the BLEED system page, make sure the FCV status, Pack flow data and Pack temperature data are not indicated with yellow "XX".
高精度数字开关电源成为电源领域关注的热点。
High resolution digital SMPS becomes the hotspot in the power supply field.
本文所研究的高精度数字开关电源系统，具有全数字化、精度高、集成度高、操作简单方便、调试升级方便、抗干扰性强等特点。
The SMPS with high resolution discussed in this pager has the features of digital control, high resolution, high integration, easy operating, good anti-EMI performance.
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