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 i...

rotations的音标：rotations的英式发音音标为：[rəʊ'teɪʃnz]rotations的美式发音音标为：[roʊ'teɪʃnz]...

n.旋转( rotation的名词复数 )，转动，轮流，轮换...