rotationally symmetric shellとは 意味・読み方・使い方

In this dustproof device, an inner shell and an outer shell each composed of a rotationally symmetric spherical shell, cylinder, cone or the like are coaxially disposed such that the inner shell and the outer shell can freely rotate around a rotational axis common to each other, while slits are formed on the respective surfaces of the inner and outer shells such that the slits crosses each other.例文帳に追加

回転対称の球殻、円筒、円錐等で構成される内殼、外殻を同軸上に配置し、互いに共通の回転軸上で自由に回転できるようにし、それぞれの表面にスリットを設け、該スリットは２つの内殻、外殻上に互いが交差するように設けられている防塵装置。 - 特許庁