The model test tried on this system did not use the tachometer generator but used rotor electromotive force instead to form the speed negativefeed-back system.
本绕线式电动机转子电路脉冲调速系统模拟试验，省去了测速发电机，而利用转子电势组成速度负反馈系统。
2
We should not share our dreams with negative people, nor feed our dreams with negative thoughts.
我们不应与消极的人共同分享我们的梦想，也不应把我们的梦想提供给消极的情绪。
3
Whether you procrastinate, feednegative self-talk, or don't rest your mind, you lower your potential to create happiness.