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- lever of first order 第一类杠杆
- The little girl was said to have a brain of first order. 据说这小女孩拥有一流的头脑。
- His earlier work announced a lyric talent of the first order. 他的早期作品显露了一流的抒情才华。
- In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems. 摘要利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
- This method is held true for machining the cylinder helical screw-rod whose sectional profile is of first order continuous differentiable curve.For ... 该算法适用于各种截面廓型为一阶连续可微曲线的圆柱螺旋面螺杆加工,并可通过分段处理技术实现对截面廓型由多段曲线组合而成的螺杆进行自动编程加工。
- The micell of block copolymer conjugates releases drugs followed the rule of first order equation and had no burst effect. 键合物胶束体外释药遵从一级动力学,不存在突释现象。
- The conditions with periodic solution are discussed in detail relating to fractional linear recursive relation of first order and some useful conclusions are obtained. 对一阶分式线性递归关系具有周期解的条件进行了详细讨论,得到若干有用的结论;
- Some solvability conditions of periodic solutions are obtained for a class of first order superquadratic non-autonomous Hamiltonian systems in light of the minimax methods of critical point theory. 摘要运用临界点理论中的极小、极大方法得到一类超二次哈密顿系统的周期解的存在性的存在性定理。
- He is repairing the brake lever of an automobile. 他正在修理汽车的刹车杆。
- Using the lower and upper solutions method monotone iterative techniques, the existence of maximal and minimal solutions of first order implusive integro differential equations of mixed type are obtained. 摘要利用上下解方法和单调迭代技巧,证明了一类混合型一阶脉冲积分-微分方程初值问题最大解和最小解的存在性。
- In this paper, we give the diagrams with XPM and without PMD.It can be seen that the XPM reduced the eyeopening to some extent, resulting in weakening the performance of first order compensation. 文中给出了采用补偿后考虑XPM以及不考虑XPM时信道的眼图,可以看出XPM在一定程度上降低了眼图的张开度,削弱了一阶PMD补偿效果。
- Second, the structure and algorithm of ADRC controller is discussed in detail and modified the structure and parameters tuning of the ADRC applied to the typical large inertia and large time delay characters of first order and second order plants. 然后,详细讨论了ADRC控制器的结构形式和算法实现,结合典型一阶二阶大惯性纯时滞系统对参数整定以及ADRC的结构进行了改进,并引入时间尺度的方法,简化同类对象的ADRC的参数整定。
- O'Brien had pushed the lever of the dial up to thirty-five. 奥勃良扳了杠杆,仪表的指针升到了三十五。
- The results show that the computed results of first order critical speed agree well with the experimental results.The program FEMQZ can be used to dynamic analysis of turbopump rotor. 实验结果表明,计算得到的一阶临界转速与实测值吻合,所发展程序能用于涡轮泵转子的动力特性分析。
- Some solvability conditions of periodic solutions are obtained for a class of first order(superquadratic) non-autonomous Hamiltonian systems in light of the minimax methods of critical point theory. 运用临界点理论中的极小、极大方法得到一类超二次哈密顿系统的周期解的存在性的存在性定理.
- On the basis of hypothesis of first ordered linear error this paper derived the kinematics posture error model of end operator. 摘要基于一阶线性误差假设推导了空间机器人末端操作器运动学位姿误差模型。
- I favor as a practical policy the putting of first things first. 我建议,作为可行的策略、首要事务先行。
- The little boy has got a brain of the first order. 这小孩有一个一流的头脑。
- That article is an example of first class journalism. 那篇文章是一流新闻文字的范例。
- In this paper, we discuss the oscillation of first order neutral nonlinear functional differential equation with variable coefficients and multi-delays, sufficient oscillation criteria are obtained. 讨论具有变系数的多滞量一阶中立型非线性泛函微分方程的振动性,得到该方程的充分性振动准则。