根轨迹法判别系统稳定性最根本的出发点是判别闭环系统特征方程的根在S平面上的位置。()
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Suppose that chemical composition is uniform among stars formed from the same cloud of gas
Algol A and Algol B had the most similar compositions.
B. Algol A and Algol C had the most similar compositions.
C. Algol B and Algol C had the most similar compositions.
D. Algol A, Algol B, and Algol C had the same composition.
机械工程控制论是研究以机械工程技术为对象的控制论问题。()
并联校正按校正环节的并联方式分为反馈校正和顺馈校正。()
THERP方法是()提出的,其主要设计工作在20世纪70年代完成,但直到1983才最终成型。