光波导位相调制技术
Optical waveguide phase modulation technology
电位计式计算器
potentiometer type calculator
GPS载波相位
GPS carrier phase
GPS carrier phase observable
GPS载波相位测量
GPS carrier phase measurements
GPS carrier phase observation
GPS载波相位差分测量技术
carrier phase differential surveying technique
GPS载波相位差分定位
GPS carrier wave difference orientation
GPS载波相位组合
carrier phase combined of GPS
波导波散参数
waveguide dispersion parameter