1731, from Medieval Latin rotarius "pertaining to wheels," from Latin rota "a wheel, a potter's wheel; wheel for torture," from PIE root *ret- "to run, to turn, to roll" (cognates: Sanskrit rathah "car, chariot;" Avestan ratho; Lithuanian ratas "wheel," ritu "I roll;" Old High German rad, German Rad, Dutch rad, Old Frisian reth, Old Saxon rath, Old Irish roth, Welsh rhod "carriage wheel"). The international service club (founded by Paul P. Harris in Chicago in 1905) so called from the practice of clubs entertaining in rotation. Hence Rotarian (1911).
雙語例句
1. A rotary telephone has a wheel with holes for each number.
轉盤式電話有個帶眼的輪子.
來自《簡明英漢詞典》
2. Invented in 1951, the rotary engine is a revolutionary concept in internal combustion.
1951年發明的轉缸式發動機是內燃機領域內的革命性概念。
來自柯林斯例句
3. The central unit is a rotary drum.
核心設備是一個旋轉的滾筒.
來自辭典例句
4. A control system for a new diesel rotary distributor pump is here introduced.
這里介紹一種新型柴油機回轉式分配泵的控制系統.
來自辭典例句
5. The Lead Pump is usually of the simple rotary design which requires little attention.