二次利用

Then using the Zhengding quadratic form theory, had proven a function of many variables condition extreme value's sufficient condition, and has given its application example.

而后利用正定二次型理论，证明了多元函数条件极值的一个充分条件，并给出了其应用的例子。

The proposed algorithm was able to perform MPPT with only one step by quadratic interpolation.

该方法利用二次插值的思想，仅通过一步就可以跟踪到最大功率点。

Based on three-points quadratic interpolation ,an algorithm is provided for solving nonlinear equation.

利用优化技术中的三点二次插值法求解，在不需要计算导数的情况下给出一种具有超线性收敛的迭代算法。

C completed the calculation method piecewise linear, quadratic interpolation, and the region between the Lagrange interpolation calculation!

利用C++完成计算方法的分段线性，二次插值和全区间拉格朗日插值的计算！

Thereinto, quadratic interpolation is uesed in undimensional search, and Powell arithmetic is used to solve unconstrained minimziation.

其中，利用二次插值法进行一维搜索，选用Powell算法进行无约束极小化求解。

The experimental method of the three-factor quadratics rotary orthogonal combination was adopted to establish the relationship between performance function and each factor, and the effects of each factor on the drying moisture uniformity were investigated.

通过三因素二次回归正交旋转组合试验，建立热风温度、表现风速和谷层厚度与干燥均匀度的回归方程，分析各因素对干燥均匀度的影响，利用贡献率法确定因素的主次关系为热风温度＞表现风速＞谷层厚度。

This paper utilizes the Reciprocal Law Two Times to prove that the rational number of a kind of form is not the integer, and proves that the number of another kind of prime is limitless.

摘要利用二次互反定律证明了某类形式的有理数不是整数，并且证明了某类形式的素数的个数是无限的。

This paper utilizes the Reciprocal Law Two Times to prove that the rational number of a kind of form is not the integer ,and proves that the number of another kind of prime is limitless.

利用二次互反定律证明了某类形式的有理数不是整数，并且证明了某类形式的素数的个数是无限的。

We built an advanced behaviour laboratory and behaviour detecting system which provided electromagnetism-proof, long time automatic recorde with video and computer and pretection of animals from secondary stress.

本研究强调医工结合，充分利用现代生物传感、电子、计算机多媒体等高技术，在声光电屏蔽与严格温湿度控制的实验室内，对动物运动行为进行长时间无干扰监测分析，整个记录和初步统计过程完全由计算机自动控制完成，克服了现有行为学研究方法对动物产生的"二次干扰应激反应"等缺点。

Sampling points were obtained by using optimal Latin hypercube design of experimental method,meantime,in order to improve computing efficiency,application of stepwise regression response surface approximate method in the MDO system of the vehicle crashworthiness and free mode of Body-In-White,the approximate model was optimized by using sequential quadratic programming method.

采用最优拉丁方试验设计方法进行样本数据设计，同时，为了提高计算效率，采用了一种新型的响应面构建方法——逐步回归响应面方法构建了整车耐撞性与白车身自由模态多学科系统的近似模型，利用序列二次规划优化方法对此近似模型进行优化，避免了整车碰撞传统优化设计方法计算量大，在碰撞非线性系统优化中常常易导致收敛缓慢甚至不收敛的缺点，在满足了CMVDR294安全法规的同时，使得白车身的扭转模态值得到提高，汽车重量得到较大程度的减轻。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。