plain boreとは 意味・読み方・使い方

The squish area 22 has its outer edge part 22a formed into a plain washer shape which extends approximately in a direction perpendicular to the axial direction of the cylinder bore 11 and has its inner edge part 22b formed into a plain shape which is gradually reduced in diameter going toward the center of the combustion chamber 15, while protruding in the direction of a cylinder head 13.例文帳に追加

スキッシュエリア２２は、その外縁部２２ａがシリンダボア１１の軸方向と略垂直方向に延びる平座金形状に形成され、その内縁部２２ｂがシリンダヘッド１３方向に突出しつつ燃焼室１５の中央に向けて次第に縮径する皿座金形状に形成される。 - 特許庁