介绍了基于单片机8051PWM 控制的电动机原理，阐述了8051与直流电动机构成的电机可逆控制和不可逆控制的实现过程。
This paper introduces the principle of electromotor based on single chip computer 8051PWM, and the realization process of reversible control and non-reversible control.
他给出的忠告包括：控制期望、选择不可逆的决定、避免进行社会比较，还有学会喜爱约束。
Among his solutions: Control expectations, make decisions non-reversible, avoid social comparisons and 'learn to love constraints.'
微波对组织的辐射是一种非电离辐射，适当控制微波发射功率和照射时间，不会对组织造成不可逆损害。
Microwave irradiation to tissues is a kind of nonionizing radiation, which would not cause irreversible lesion of tissues if microwave irradiation power and time were controlled properly.
马钢高线主传动原使用的是磁场可逆而电枢不可逆的ISA085控制系统。
The main drive of the High Speed Wire Plant of Maanshan Iron & Steel Co. , Ltd. originally used the ISA085 control system with a reversible magnetic field and an irreversible armature.
将不可逆过程热力学的理论应用于氧化铝的碳酸钠焙烧过程，得到过程的动力学方程。 研究表明氧化铝钠化焙烧过程的控制步骤与氧化铝的粒度有关。
The theory of thermodynamics of irreversible process was applied to the reaction of alumina roasted with anhydrous sodium carbonate, and obtained the dynamic expresses of the reaction.
将不可逆过程热力学的理论应用于氧化铝的碳酸钠焙烧过程，得到过程的动力学方程。 研究表明氧化铝钠化焙烧过程的控制步骤与氧化铝的粒度有关。
The theory of thermodynamics of irreversible process was applied to the reaction of alumina roasted with anhydrous sodium carbonate, and obtained the dynamic expresses of the reaction.
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