Reuleaux triangles
Synonym of close call
(Cambridge University, historical) Former name of Pembroke College, Cambridge.
plural of Reuleaux triangle
(now chiefly dialectal or a misspelling) At that time; then.
技術者はしばしば一定幅の三角形を使って、ほぼ正方形の穴をあけるドリルビットを設計します。
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