美[ro??te??n] 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(jìn)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(zhuǎn)
來自《權(quán)威詞典》
3 . the daily rotation of the earth on its axis
地球每天的自轉(zhuǎn)
來自《權(quán)威詞典》
4 . Crop rotation helps prevent soil erosion.
農(nóng)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.
通過使用晶格旋轉(zhuǎn)(Lattice-rotation)模型擬合, 計算出樣品的螺位錯密度和刃位錯密度.
來自互聯(lián)網(wǎng)
1.the act of rotating as if on an axis;
the rotation of the dancer kept time with the music
2.(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
3.a single complete turn (axial or orbital);
the plane made three rotations before it crashed
4.a planned recurrent sequence (of crops or personnel etc.);
crop rotation makes a balanced demand on the fertility of the soil
