angular subtenseの例文

• Since the ray cones approaching the detector surface have the same angle of incidence and angular subtense everywhere in the image plane, the image is evenly illuminated.
• So the criticism is that we could potentially end up with endless concepts, each defined by the things that measured the concept, such as angle of sighting, day of the solar year, angular subtense of the moon, etc . which were gathered together, some astronomical observations taken over a period of thousands of years.