passive microwave imagery
Passive microwave imaging
Passive microwave radiation
passive microwave radiometer
Passive Microwave Radiometry
passive microwave remote sensing
Passive microwave remote sensing of snow
passive microwave sensor
image and image description
bei (被) passive sentences
3-D single observer passive location
a combination solution of the active and passive method to reduce noise
acoustic passive localization
acoustic passive location
acoustic passive location array with four sensors
acquired passive immunity