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1·The measure theories and methods of tilt angle and face angle are introduced combining with the composing principle and design of the transmitter of No-Dig navigating instrument.

结合非开挖导航仪器中探头部分的整体构成原理与设计，介绍了倾角、工具面向角等关键技术参数的检测原理与方法。

2·The plane will receive false navigating information for the existence of false glide path of instrument landing system on decimeter wave band.

分米波仪表着陆系统虚假下滑道的存在会导致飞机得到错误的导航信息。