1550s, from Latin rotationem (nominative rotatio) "a turning about in a circle," noun of action from past participle stem of rotare "turn round, revolve, whirl about, roll," from PIE *ret- "to run, roll" (see rotary).
雙語例句
1. Within the project, trees are selectively cut on a 25-year rotation.
按照這個計劃，將以25年為一個輪伐期對樹木進行有選擇的砍伐。
來自柯林斯例句
2. the diurnal rotation of the earth
地球的周日自轉
來自《權威詞典》
3. the daily rotation of the earth on its axis
地球每天的自轉
來自《權威詞典》
4. Crop rotation helps prevent soil erosion.
農作物輪作有助于防止水土流失.
來自《簡明英漢詞典》
5. By using the lattice - rotation model, the screw and edge dislocation densities of the samples were calculated.