查询词典 quadratic

Theoretically speaking, it is a rather-clearly discussed subject to standardize the quadratic equation into the normal forms by spinning the coordinate axis so as to approach the shapes of its curves.

从理论上讲，通过坐标轴旋转将二次方程化简为规范形式，从而讨论其曲线的形状，这已是讨论得相当明瞭的课题。

Mathematic models between yield and N fertilizer and plant density for two peanut variety types were set up by using quadratic saturation D-optimization design under single-seed planting.

采用二次饱和D—最优设计建立了精播条件下不同类型花生品种N肥用量和密度与产量的数学模型，探讨肥料与密度的产量效应及优化配置。

Using quadratic orthogonal rotation design,this paper establisheda mathematical model of density change during self-thinning for Cunninghamia lanceolata plantation,and theinner law of density change during self-thinning for Cunninghamia lanceolata plantation were analyzed.

进一步应用数量化理论I分析杉木人工林自疏过程密度变化与环境因子间的相互关系，确定影响杉木林自疏过程密度变化的主要环境因子为海拔、坡位和林分平均胸径，从而为杉木林自疏机制的定量描述提供了依据。

Quadratic self-adjoint matrix polynomial\mbox{'}s properties were demonstrated in detail.

系统地论证了二次自伴矩阵多项式特征值，特征向量的性质。

The development of part copy and scale function in CAD drawing is based on Visual Lisp language quadratic development, which mainly solve the problem that need precise showed and labeled in CAD engineering design drawing.

CAD图形的局部拷贝缩放功能的开发是基于Visual Lisp语言基础上的二次开发，主要地解决工程设计绘图中需要精确显示和标注的局部图形。

Compared with extended quadratic congruence codes,EHLC has large code cardinality,but has a little poor performances of auto correlation and cross correlation.

用该码作为时间扩频伪随机序列和以素数码作为波长跳频伪随机序列，再构成一种新的二维光正交码 EHLC/PC。

Based on quadratic congruences, a family of codes which have large capacity, good auto-correlation and cross-correlation properties is constructed in frequency domain.

在二次方一致性的基础上，构造了一种容量大、自相关和互相关特性好的码族。

This yields first, second and third order accuracy in the case of the constant, linear and quadratic extrapolations, respectively.

使用的外插法有常数、线性以及二次的外插法，并将分别可以得到一阶、二阶以及三阶的精度。

Studies has been carried out on normal seedling of treating bacteria-bearing wheat seed by four chemicals, and optimum condition has been explored on mercuric chloride by quadratic regression orthogonality design.

针对种子检验工作中存在的带病菌作物种子影响正常幼苗率的问题，选择出适当药剂氯化汞，采用二次回归正交设计的统计分析方法，对带病菌的小麦种子进行了研究。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。