摘要：点火导线是航空活塞发动机点火系统的重要组成部分,从磁电机产生的高压电通过点火导线传到气缸的点火电嘴。要保证超过20 000 V的高压电以最小的损失传到电嘴,且不影响飞机的其他电器元件,点火导线独特的设计结构尤为重要。现详细阐述了发动机点火导线的结构,并探讨了维修过程中遇到的常见故障和检查方法。

摘要：FY-4 satellite R&D led by SAST has completed all critical development at the beginning of this year,making a good start of the development of *** FY-4 satellite is the first time to adopt a new platform,new payload and new technology increasing difficulty and with a limited *** important tests of the satellite were conducted at the end of 2013 and the begin-