The VO2max is like the power output of a motor, Rapoport said. It's the maximum rate at which the muscles can takeup oxygen to keep working.
最大氧耗量就像机动车的能量输出功率，就是肌肉吸收氧气继续工作的最高速度。
2
In the past for a long time, step motor to takeup a large market, but China is gradually replaced for servo motor.
在过去很长一段时间里，步进电机占很大的市场，但目前正逐步为伺服电机所取代。
3
About the mechanism of adjusting crossbeam balance, the three-phase blend stepping motortake the place of the A. C. motors, the coder as a feedback device, then make up of a closed-loop system.