There are some problems in the traditional aero engine borescope inspection(BSI) practical course, which results in some damage of equipment and poor teaching effect. Based on several years teaching summaries, the BSI teaching instrument is a new teaching equipment which is a pioneering and unique teaching equipment in the aviation colleges so far. It can both achieves original teaching effect and reduces the damage of expensive borescope equipments.%传统的航空发动机孔探实训教学缺少入门级的教学设备，造成孔探仪器损坏的同时，教学效果也欠佳。经过多年的教学总结，逐渐构思并研制出一套新的教学设备，既能很好地实现既定的教学效果，又能减少昂贵孔探设备的损坏。这是针对航空发动机孔探教学的首创，也是国内航空院校迄今为止独一无二的航空发动机教学设备。
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