查询词典 cubic equation

It was not cubic on the silver plate, but whole cubic plate with 'So' cubic character on it.

苏字名牌并不是立体的，但是整体苏字水晶看起来就很有特色。

In this article, 3-D Ising model is simulated by the means of Monte Carlo, such as the simple cubic lattice, the body-centered cubic lattice and the face-centered cubic lattice.

它是一种计算机模拟的方法，采用随机抽样，能够比较逼真地描述真实物理实验过程，精确性好。

According to the sizes and shapes of the zeolite pores, the local arrangement of adsorption sites within the pores in the LDFT models were simulated by the clusters of simple cubic lattice, face-centered cubic lattice, and body-centered cubic lattice structures.

根据沸石孔的尺寸和形状，LDFT模型将氢分子在孔中的吸附位分布近似为简单立方、面心立方和体心立方的团簇结构。

As an example to cubic trigonometric polynomial Bézier,the characters of trigonometric polynomial Bézier curve is analyzed,and deduced that cubic trigonometric polynomial Bézier curve is more smooth than cubic polynomial Bézier curve.

Bézier曲线是计算机辅助几何设计中的一类重要曲线，文献[1]介绍了三次Bézier曲线插值，文献[2]介绍了三次Bézier曲线的保凸插值，但难以解决一端曲率为0，另一端曲率比较大的插值问题。

Because the octree tessellates the object into uniform cubic octants/voxels, this representation allows efficient simulation of heat flow from cubic voxel to cubic voxel.

由于八叉树表示的三维空间形体结构是由大小不同的众多立方体镶嵌而成，它可以有效地模拟热量从一个立方体流向另一个立方体，并动态产生模拟红外图象。

In a natural state, the Junggar Basin, inland river sub - 4 Drainage District:(1) Buluntuohai water; Health ulungur water, out of Yamaguchi average annual runoff of 11.3 billion cubic meters, the last 10 years into the lake for many years for the most amount of 600 million cubic meters, most juveniles is only B 01.5 billion cubic meters; in 1970 from Elgin Qi period after the introduction of part of the river water, B the amount of water level decline eased Buluntuohai.

在自然状态下，准噶尔盆地的内陆河分为4个排水区：（1）布伦托海水系；汇乌伦古河水量，出山口平均年径流量113亿立方米，最近10年入湖水量最多年为6亿立方米，最B少年仅015亿立方米；1970年后从额尔齐期河引进部分水B量，缓和了布伦托海的水位下降。

Plateau basin surrounding karst groundwater resources to strengthen the investigation and identify the volume of 998 million cubic meters of mined / year; Southwest karst areas to 180 billion cubic meters of underground water resources / year, the volume of 77 billion cubic meters of mined / year; Southwest completed eight provinces 339 counties 740,000 square kilometres trees remote sensing surveys; Preliminary identification of the geological environment of the Yellow River source region ecological conditions change, first proposed the freezing cold caused a drop in water level at Sheung Shui and Yuen district water meadow degradation of the important reasons for the deterioration of the environment.

加强鄂尔多斯盆地周边岩溶地下水资源的调查，查明可开采量9.98亿立方米／年；西南岩溶地区的地下水资源为1800亿立方米／年，可开采量770亿立方米／年；完成西南八省339个县74万平方公里石漠化遥感调查；初步查明了黄河源区生态地质环境变化状况，首次提出冻结层上水水位下降是造成高寒草甸退化和源区水环境恶化的重要原因。

The finite difference is used to approximate differential operation; the reflectance map equation described by the first order nonlinear differential equation is transformed into an algebraic equation about the unknown surface heights, and then the objective equation is constructed by the reflectance map equation and gradient information of image. Moreover, the Newton iterative algorithm is utilized to obtain the numerical solution and 3D shape of the surface.

采用有限差分近似微分运算，将一阶非线性微分方程所描述的反射图方程转化为关于未知表面高度的代数方程，再由反射图方程和图像梯度信息构造目标方程，进而用Newton迭代算法求出该方程的数值解，得到表面三维形状。

We develop and apply the Hirota bilinear-θfunction method,Jacobi elliptic function expansion method,linear superposition method and F-expansion method respectively to solve many 2+1 dimensional nonlinear wave models including 2+1 dimensional 2DsG equation,the coupled ZK equation,2+1 dimensional KdV equation,2+1 dimensional long wave short wave resonance interaction equation and 2+1 dimensional dispersive long wave equation,abundant Jacobi elliptic function doubly periodic solutions are derived.These solutions show various periodic wave shapes and special periodic characters.

发展和应用Hirota双线性-θ函数方法，雅克比椭圆函数展开法，线性叠加法，F-函数展开法等分别求解2+1维2DsG方程，耦合ZK方程，2+1维KdV方程，2+1维长波短波共振相互作用方程，2+1维色散长波方程，获得丰富的雅克比椭圆函数双周期波解，描述了一些周期波形态及周期特性。

In the solution of the problems in algebraic equation, differential equation and integral equation, we usually resort the sotution of equation to the fixed point of mapping in metric space. The contraction mapping principle can be used to solve many problems of the existence and uniqueness of equation solution.

在代数方程、微分方程和积分方程的求解问题中，通常把所求的解归结为度量空间中映射的不动点，然后应用压缩映象原理来统一处理许多方程解的存在性和唯一性问题。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。