「directrix」を含む例文一覧(1)

  • The inside reflecting surface 22 of the lower reflecting cylinder 20 is formed into a trumpet-shaped paraboloid of revolution the longitudinal section of which shows a parabola arc and the lower part of which is expanded, its directrix is horizontally set, and the focus 22a is made eccentric from the center axis 8.
    下部反射筒２０の内側反射面２２はその縦断面が放物線円弧を呈して下方が拡開したラッパ状の回転放物面に形成し、準線は水平方向に設定し、焦点２２ａは中心軸８から偏芯させる。 - 特許庁

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