Radar signals can penetrate vapor space containing dust or steam which is problematic for ultrasonic devices.
雷达信号可以穿透包含灰尘或蒸汽的蒸汽空间，这对于超声波装置是有问题的。
2
The imaging method may be not only applied to the radar imaging for partial terrain area, but also to reflection mode ultrasonic ct.
本文的方法可应用于雷达对地面局部区域成象中，也可应用于反射式超声ct竖断面成象中。
3
On the analysis of the principle of ultrasonic distance measurement based on, given the realization of ultrasonic reversing radar system hardware design circuit diagram and software design flow chart.