• I take the time derivative.

    我会计算时间导数

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  • I'm going to take the time derivative just as I did in the case of the spring.

    将要提取时间我在,弹力那个例子里那样

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  • There is a power law relation between the modificatory factor and the time derivative of the period.

    从统计上得到修正因子周期变率关系

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  • Yes, I divide... m Oh, there's an m here, m And now what I'm going to do, I'm going to take the time derivative of this equation.

    除以。,这里,应该在这里。,and, the,m, has, to, be, here。,现在,我这个等式,转化成与时间有关。

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  • We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.

    以前算过-,能量守恒为了算出,谐振周期我们时间导数。

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  • And so I can substitute that in there, and so I get that the power is the derivative of this versus time.

    所以可以代入这里得到那个功率相对时间衍生物

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  • So, the velocity vector is the derivative of a position vector with respect to time.

    速度向量位置向量关于时间导数

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  • And so we're going to take the derivative versus time of this equation.

    我们要求这个方程时间导数

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  • It fears that this time the dice may be weighted against its more costly but "better value" A330-based tanker in favour of Boeing's smaller 767 derivative.

    空客害怕一次可能黑箱操作,导致不会选择虽然物有所基于A330的空中加油机,而会选择较小的基于波音767的衍生机型。

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  • That's the first derivative of the position versus time.

    就是位置时间阶导数。

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  • And, the way we can get it, so, it's called usually V, so, V here stands for velocity more than for vector. And, you just get it by taking the derivative of a position vector with respect to time.

    根据原理,我们通常v表示,这里的V代表速率而不是矢量通过,对一个关于时间位置向量求导得到它。

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  • The second time derivative is the constant acceleration.

    导数就是这个加速度。

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  • In this equation, the diffusion is a fractional order derivative of time and space.

    方程中,弥散项和对时间导数分数阶导数所代替。

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  • This paper briefly discusses the effects on the aerodynamic derivative identification results caused by time delay in measured parameters.

    主要讨论测量参数间的时间延迟飞机气动导数辨识结果影响

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  • Some first order time derivative terms are contained in the equations.

    方程含有强迫场时间导数项。

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  • For the first time, derivative distribution of velocity in cell is presented and some new conclusions are obtained.

    首次给出了电池速度导数分布得出一些新的结论

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  • The stability of time-delay and time-varying large scale systems with impulsive effect is investigated by means of the comparison principle and vector Lyapunov function with discontinuous derivative.

    运用比较原理导数不连续李雅普诺夫函数,结合分解集结等方法研究具有滞后测度型线性时变脉冲扰动系统的全局指数稳定性

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  • A reduced order time delay observer with low pass filter is presented. The vibration of control signal, which is caused by the approximation of the delayed derivative of the state, is eliminated.

    提出一种滤波时滞观测器,避免了常规时滞观测器控制由于时滞状态微分近似引起控制信号

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  • The results of classical cases indicate that the sensitivity derivative gained by approximate method has good accuracy and the inverse design can be completed efficiently with reduced total CPU time.

    典型算例结果表明简化方法计算得到敏感性导数具较高的精度,能够有效完成问题设计减少总的计算耗时。

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  • A new algorithm for calculating impedance based on derivative method is proposed in order to improve the accuracy and real-time.

    为了提高阻抗计算精度实时性,提出了一种基于导数计算阻抗的算法

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  • Moreover, due to the dynamic equations of LPMs with second-order derivative terms in time, the resulting structure-foundation-soil system can be solved by an explicit time-integration method.

    此外由于模型动力方程具有时间导数项,因而应用本文模型的结构—基础—土系统可以采用时间积分求解

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  • CONCLUSION: compound 1 was a new diphenylmethane derivative, and compounds 2-6 were isolated from the genus Uvaria for the first time.

    结论化合物1一个新的二苯甲烷类衍生物化合物2 - 6皆为紫玉盘植物中首次分到。

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  • At the same time, the definition of legal concept mentioned above also tell us that the concept takes on such four characters as normalization, opening, practicality and derivative.

    同时,对法律概念上述界定告诉我们,它具有四个明显的特征规范性、开放性实践性衍生性。

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  • At the same time, the definition of legal concept mentioned above also tell us that the concept takes on such four characters as normalization, opening, practicality and derivative.

    同时,对法律概念上述界定告诉我们,它具有四个明显的特征规范性、开放性实践性衍生性。

    youdao

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