查询词典 quadratic

Based on the optimum quadratic performance index, the optimum guidance law is deduced to make sure the landing velocity and angle of warhead.

用最优设计方法得出程序弹道的最佳控制变量攻角α，保证在程序飞行段末端的弹道倾角θ达到预定要求，并使弹头末端速度达到最大。

Calculate limits, derivatives, integrals of functions. Solve differential equations. Master the fundamental concepts of spatial analytic geometry such as line, plane, quadratic surfaces.

培养学生的数学素质，具体地讲，要使学生具有抽象思维能力、逻辑推理能力、空间想象能力、运算能力和综合运用所学知识分析问题和解决问题的能力。

Compared with common quadratic elements, this kind of interpolation method achieves the same accuracy by adding a rotation degree of freedom on every vertex without using midpoints of edges or interior points. Whether consider from the running time or the space that data occupied, this sort of element is more effective than 8-nodes quadrilateral.

和一般的二次单元相比较，这种插值方法不需要使用单元边中点或者内部节点进行插值，仅在每个顶点上增加一个转角自由度就可以得到和二次元相当的精度；无论从运算时间还是数据所占用的空间来考虑，这类单元的计算花费均大大低于八节点四边形二次单元。

In the non dimensioned time domain,the generalized quadratic performance criterion of error state transits into the optimal problem of structural parameters,thus gets an optimal parameter system—optimal damping control system with big margin for stability,little number for oscillation,small overshoot,and small setting time.

在无量纲时域中，把状态误差的广义二次型性能指标转换成结构参数的优化问题，从而得到一种稳定裕度大、振荡次数少、超调小、调节时间短的最佳参数系统——最佳阻尼控制系统。

In the non_dimensional time domain,the generalized quadratic performance criterion of error state is transited into the optimal problem of structural parameters,thus to get an optimal parameter system_optimal damping control system with big margin for stability,little number for oscillation,small overshoot and small setting time.

1引言利用优化系统的结构参数，使之输出的动态性能达到最佳程度，传统方法都是在时域或频域中进行，典型的有&ITAE&准则［1］及电子最佳调节理论［2］，基于无量纲时域中的误差状态二次型性能指标的优化方法，是一手种新的最佳参数化方法［3］，可使系统对于输入作用的阻

The introduction of quark delocalization can be viewed as taking into account either the contribution of excited configurations or the distortion of individual baryon due to mutual interaction, its characteristic is to allow the six-quark system to choose the favorable configuration by its own dynamics automatically; Various quark models extended linear or quadratic confinement potential for 3q system to 6q system directly. Due to the nonlinearity of QCD, quark-quark interaction in color singlet may be different from that in non-color singlet. For example, the contribution of three-gluon exchange to one baryon is different from that to two baryon singlets, and so on.

引入夸克蜕定域效应，既可以看作是考虑了具有较高能量的激发组态的贡献，也可以看作是考虑了重子不碰撞过程中发生了畸变，其特点是让夸克体系自动选取最有利的组态；以往的QCD模型总是将哈密顿量直接从单重子系统推广到双重子系统，但QCD理论是一个非线性理论，处于色单态的两个夸克间的相互作用可能不同于处于非色单态的两夸克间的相互作用。

The peak position and peak number of resolving factor can be achieved by quadratic differential.

分辨因子中的峰位置和峰数目由二次微分进行确定。

The grid quadrats will most probably be distorted so I manually adjust the tiling to get the right map aspect ratio and make the squares quadratic.

网格材质容易看出扭曲来，我可以通过手调他的重复次数来使它有合适的贴图比例。

The grid quadrats will most probably be distorted so I manually adjust the tiling to get the right map aspect ratio and make the squares quadratic.

网格材质轻易看出扭曲来，我可以通过手调他的重复次数来使它有合适的贴图比例。

The author used to solve the linear matrix method to simulate the equations of quadratic regression equation work curve with only a few simple mathematical expressions for the second straight three coefficient regression equations, received the good effect.

作者用矩阵法求解线性方程组的方法来模拟工作曲线的二次回归方程，仅用几个简单的数学表达式就直接求得了二次回归方程的三系数，收到了很好的效果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。