查询词典 approximate partial derivative

Take the 8K mirror kneading board, the electricity galvanized sheet as a ledger wall, after carrying on the etching treatment, carries on the intensive processing again to the object surface, may carry on the partial sand blasting, the wiredrawing, the gold inlay, the partial titanium gold and so on various types complex craft processing, realizes the design light and shade interaction, the color gorgeous effect.

以8K镜面板，电镀板为底板，进行蚀刻处理后，对物体表面再进行深加工，可进行局部的喷砂，拉丝，嵌金，局部钛金等各式复杂工艺处理，实现图案明暗相间，色彩绚丽的效果。

In this paper, the author is concerned with the problems that are to be solved in the field of Partial Difference Equations such as the following: the existence of oscillatory solutions of some partial difference equation, the asymptotic behavior of positive solutions of the same equation.

本文旨在研究当前偏差分方程领域中尚待解决的有关振动解的存在性及正解的渐近存在性等问题。

Chapter 2, we investigate the existence of multiple positive solutions of the neutral partial difference equations on the base of the existed results of partial difference and difference equations, and obtain some sufficient conditions for the existence of multiple positive solutions.

第二章，基于已有的偏差分方程和差分方程的结果，我们研究了高阶非线性中立型偏差分方程多正解的存在性问题，建立了判断多正解存在的充分条件，对前人的结果进行推广。

Let the obtained modality parameters be substituted into the coupling vibration partial differential equation and transform the complex partial differential equation into the variable coefficient nonlinear or...

把所得模态参数代入耦合振动偏微分方程中，将复杂的偏微分方程转化为变系数非线性常微分方程组，用Runge-Kutta方法获得方程的数值解。

In the light of the Daxi period,the Qujialing stage and the Longshanstage,Chapter Two is devoted to an elaborate explanation of the nonlineardevelopment of the neolithic culture of the area,from the partial differen-tiation,the partial integration to the whole differentiation.

第二章依大溪期、屈家岭期和龙山期，全面地分析了该区域新石器时代文化从多体文化的局部分化、局部整合到大分化的非线性发展过程，具体而言，大溪文化经历了由早期发展到分化的过程，而螺蛳山文化和青龙泉一期文化则是局部整合的结果。

At MR imaging, partial Achillestendon tears demonstrate heterogeneous signal intensity andthickening of the tendon without complete interruption ( Fig 15).Differentiation between partial tear and severe chronicAchilles tendinosis may be difficult apart from clinical history.

在MR图像上，部分跟骨肌腱断裂表现为肌腱增厚及信号不均匀，但没有完全中断，从临床病史上可能很难鉴别部分撕裂和严重的慢性跟骨韧带变性。

At the cellular level, As〓O〓 triggers apoptosis and a partial differentiation of APL cells in a dose-dependent manner, that is, triggering apoptosis at relatively high doses (0.5-2μM) and inducing partial differentiation at low concentration (0.1-0.5μM) after relative long time treatment.

体外研究发现，在细胞水平，As〓O〓可诱导早幼粒细胞凋亡与部分分化并呈剂量依赖性，即大剂量(0.5-2μM)As〓O〓诱导APL细胞凋亡，而低剂量(0.1-0.5μM)As〓O〓长时间作用后则诱导APL细胞部分分化。

Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

By using the graph-theoretic method, the completion problems for a partial inverse Mmatrix with any order are discussed when its corresponding graph of the partial inverse M-matrix is a 2-chordal graph .

本文采用图论的方法对任意阶部分逆M矩阵，当其对应的图为2-弦图时，研究了其逆M矩阵的完备问题。

Using PH linearization ,the nonlinear partial differential equation was transformed into linear partial differential equation,and then,by introducing a complex function,it was further transformed into a set of two linear differential equations.

应用 PH线性化方法，将非线性偏微分方程转化为线性偏微分方程，引入复函数将复常数偏微分方程变为两个线性实常数微分方程组，并采用小参数迭代法进行求解，近似求得了螺旋槽内气体动压分布的解析解。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。