查询词典 suppositional

The tendency of voluntarism was a philosophical basis of the Great Leap Forward Movement at the end of the 1950's, which embodied as excessively exaggeration on irrational factors such as will and emotion, and it based on four areas, that is, take big breakings of the condition constraint, regard suppositional condition as true condition, replace condition theory with advantageous institution theory, and misuse analogism.

唯意志论倾向是20世纪50年代末中国大地上掀起的大跃进运动的哲学依据；大跃进时期唯意志论倾向体现为当时人们对主体意志、情感等非理性因素的大肆喧染；大跃进时期的唯意志论倾向的形成有四方面的根据：即大破条件论，把虚拟条件当作真实条件，以制度优越论代替条件论，误用类比推理。

Firstly, based on the sliding mode control and backstepping technique, a new attitude tracking controller is derived to control the attitude motion of spacecraft, the stability of the system is analyzed via Lyapunov method and the reaction wheel dynamics is also considered from the real applications point of view. The whole design process is divided into two steps: the first step is to use sliding control technique to design suppositional adaptive variable structure controller; and the second step is to design attitude tracking controller based on SMC and backstepping technique. Numerical simulations are performed to show that both tracking maneuver and vibration suppression can be accomplished effectively.

首先，采用自适应后步法结合主动振动控制技术设计了姿态跟踪鲁棒控制器，基于Lyapunov方法分析了系统的渐近稳定性；在此基础上，显性地考虑了执行机构动态特性问题，将整个设计过程分为两个步骤：第一步采用滑模控制技术设计了变结构虚拟控制器，给出自适应控制律的设计方法；第二步，将后步法与滑模控制技术相结合，设计了姿态跟踪鲁棒控制器，给出飞轮电压的输入算法及稳定性分析；最后，将提出的控制方法应用于挠性航天器的姿态跟踪控制，通过数值仿真对所提方法的可行性与有效性进行分析和验证。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。