rotations
n. 旋转( rotation的名词复数 ); 转动; 轮流; 轮换
Rotation is circular movement. A rotation is the movement of something through one complete circle.
...the daily rotation of the earth upon its axis.
地球每天绕地轴自转
The rotation of a group of things or people is the fact of them taking turns to do a particular job or serve a particular purpose. If people do something in rotation, they take turns to do it.
He grew a different crop on the same field five years in a row, what researchers call crop rotation...
他连续5年在同一块地里种植不同的作物,研究人员称之为轮作。
Once a month we met for the whole day, and in rotation each one led the group.
我们每个月聚在一起一整天,轮流担任领队。
Farmers traditionally used long - term rotations of hay, pasture, and corn.
农民以往 长期 实行干草 、 牧草和玉米轮作.
The crankshaft makes three rotations for each rotation of the rotor.
转子每转一周,曲轴转3周.
Image graphs are rather robust to small in - depth rotations of the head.
影像图是相当强劲的小深入的旋转.
Maxwell's equations are of course symmetrical under rotations of all of space.
麦克斯韦方程就具有这种性质.
Quarterly surveys need sample and those with multi - stage sampling multi - layer sample rotations.
目前的平衡两层次样本轮换模式只适用于一级单元规模较小时的两阶段抽样月度调查.