轮作方式
This switch controls the number of rotations per minute. 这个开关控制着每分钟的转数。
"Most of the time we have rotations, 10 minutes or eight minutes. “大多数时候，我们需要轮转，10分钟或8分钟。
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 TG70 steam turbine has a operation speed of9600 rotations per minute( RPM). TG70型蒸汽透平的运转速度为每分钟9600转。
For geophysical purposes it is customary to use solar rotations of 27. 0 day. 为适应地球物理学的需要
