查询词典 quadratic

Ellipsoid is given followed by the same definition of the standard ellipsoid equation, and the long axis of the ellipsoid volume formula of a ternary quadratic equation that the circumstances under which ellipsoid provides the basis to determine the final conditions in the ellipsoid three-ball, how long, the size of it?

接着同样给出椭球面的定义，椭球面的标准方程，及椭球的三轴长，体积公式，对一个三元二次方程什么情况下表示椭球面提供了判断依据，最后在此条件下椭球的三轴长又如何计算，体积呢？

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。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎