365bet中国官方网站

  • word of the day

    off-axis reflector

    off-axis reflector - 365bet中国官方网站 definition and meaning for word off-axis reflector

    Definition
    (noun) a reflecting telescope with the mirror slightly tilted to throw the image to the side where it can be viewed

  • Word used in video below:
    text: parabolic reflector and everything i
    Download our Mobile App Today