查询词典 time axis
- 与 time axis 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Prime Meridian, which runs through Greenwich in south-east London, became the basis for the world's time keeping in 1884 after the first Astronomer Royal, John Flamstead, calculated that the Earth rotated on its axis once every 24 hours.
1884年,首位皇家天文学家约翰法兰姆斯坦算出地球每隔24小时绕轴自转1次,使得通过伦敦东南格林威治的本初子午线成为全球计时基准。
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Firstly, the control of reentry phase and the model of RCS jets are presented. Then the flight control system is divided into two subsystems based on the time-scale separation principle. The fast states subsystem corresponds to the three body-axis angular rates, the slow states subsystem controls the angle-of-attack, sideslip angle and the rate of the bank angle about the velocity vector. Lastly, the proportional-plus-integral feedback is designed to increase the system robustness.
首先,分析了SRLV再入段的数学模型,并给出了反作用推力控制系统的控制模型;其次,将非线性动态逆方法与时标分离原则相结合,考虑飞行器姿态控制系统的外环角回路的慢变特性和内环角速度回路的快变特性,独立设计了两个回路的控制律;最后,为了增强系统的鲁棒性,分别在两个回路中引入了比例-积分反馈,有效地抑制了干扰力、力矩和非线性对消带来的逆误差。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。