查询词典 quadratic

As a branch of number theory, the theory of binary quadratic forms has a long history.

作为数论的一个分支，二元二次型理论有着悠久的历史。

For example, a surface element that is far from the point under consideration will occlude less that point than if it was closer, with a quadratic attenuation.

比如说，距离一个所考虑点的距离较大的一个表面元素对这点的遮挡量会少于一个较近的表面元素，以二次方式衰减。

Based on the axial symmetric N-S equation of compressible liquid, we establish the onflow model to simulate convergent nozzles' free jet with different internal parameters by using structural grid and finite volume of quadratic precision.

建立了会聚型喷嘴的湍流模型，根据可压缩流体轴对称N－S方程，采用结构网格和二阶精度的有限体积法，对不同内部形状参数的会聚型喷嘴自由射流进行了数值模拟。

This paper discusses the application of linear quadratic optimal control theory in network PID control system.

讨论了线性二次型最优控制理论在神经网络PID控制系统中的应用。

Based on quadratic optimal control of the crane placed source open-loop method of research, this is very creative.

基于二次型最优控制的起重机开环消摆方法的研究，这是很有创意的。

In Chapter 3, the linear quadratic optimal control problem is researched.

第三部分研究了非线性微分-代数系统的二次指标最优控制问题。

The design problems of the optimal output feedback control system based on the frequency-shaped quadratic functional are discussed

讨论了基于频率成形二次型指标的输出反馈控制系统设计方法，推广了频率成形二次型指标的应用。

Based on the PNN, a quadratic form performance index function is presented which allows the optimal operating trajectory to be obtained.

基于此时间函数模型，通过产品质量性能指标优化计算，获得最佳的控制轨线，作为实际生产的设定曲线。

With the restriction of water demand and supply, the objective function optimal value was calculated by sequential quadratic programming.

以需水量和可供水量为约束条件，采用序列二次规划法求解函数最优值。

Multi-attribute decision-making; objective programming; quadratic programming; optimum solution; prioritizing

多属性决策；目标规划；二次规划；最优解；排序

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。