Its major parts-the operating principle and circuit feature of drivers, the equipment for measurement of telescope position and infraredphotometer are introduced.
详细地描述了它的主要部份——驱动装置，测角装置、红外光度计的工作原理和电路特点。
3
Verbiscer and her colleagues used Spitzer's longer-wavelength infrared camera, called the multiband imaging photometer, to scan through a patch of sky far from Saturn and a bit inside Phoebe's orbit.