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The main contents of this course include: introduction, extraction of root from an equation, numerical solution of a system of linear equations, interpolation method, the method of fitting of a curve, numerical integration and differentiation, numerical solution of a differential equation, one-dimensional search method of extreme value problem, etc.

本课程包括以下内容：绪论、方程求根、线性方程组数值解法、插值法、曲线拟合法、数值积分与数值微分、微分方程数值解法、极值问题的一维搜索法。

The method is realized by that polyether ether ketone is added into concentrated sulfuric acid to carry out sulfonation reaction, thereby obtaining sulfonated polyether ether ketone, then the sulfonated polyether ether ketone is dissolved in organic solvent, N, N (1)-Carbonyldiimidazole is added to stir for one to three hours, coupling agent is mixed for stirring the reaction for 1.5 to 4 hours, then inorganic crosslinking agent is mixed to react under the temperature of 50 to 80 DEG C. Proton conductors are mixed to continue getting the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors under the temperature. Finally the proton exchange membrane for a direct methanol fuel cell is obtained by that the mixed solution of the sulfonated polyether ether ketone or the inorganic crosslinking agent or proton conductors is/are processed through membrane forming, drying and exuviation.

该方法首先将聚醚醚酮加入浓硫酸中进行磺化反应得到磺化聚醚醚酮；然后将磺化聚醚醚酮溶于有机溶剂中，加入N，N′-羰基二咪唑搅拌1～3小时后加入偶联剂搅拌反应1.5～4小时，再加入无机交联剂在50～80℃下反应，然后加入质子导体继续在此温度下反应得到磺化聚醚醚酮/无机交联剂/质子导体的混合溶液；最后将磺化聚醚醚酮/无机交联剂/质子导体的混合物溶液成膜，干燥，脱膜即得到所述的直接甲醇燃料电池用质子交换膜。

Through the main factor solution of the model was solved, and also analyzes the general model, also presented its solution.

通过主因子法求解了模型的解，然后还分析了一般的模型，也给出了其解。

The method generates the feasible set that satisfies the constraint condition with chaotic optimal algorithm, fines out the optimal trade-off solution from the non-inferior solution set with the favor of interactive decision-making, and furthermore, makes an actual case study on the reservoirs along the downstream of Luanhe River.

该方法利用混沌优化算法生成满足约束条件的可行集，再采用交互式决策偏好的方法从非劣解集中寻找最佳权衡解；并对滦河下游水库群进行了实例研究。

Solution will convergent to optimal point of feasibility through penalty of solution outside feasible region again and again.

通过对可行域外的解进行惩罚，经过不断迭代，使解群逐渐收敛于可行的最优点。

The solution example indicates that the solution method is feasible.

算例表明所提出的求解方法是可行的。

Study the result makes clear, adoption temperature field seeks solution child structural technology, of the three-dimensional temperature field that applies to area of have a common boundary of inside and outside of the chamber of a stove or furnace and node of ferroconcrete structure Liang Zhu seek solution.

探究结果表明，采用的温度场求解的子结构技术，适用于炉膛内外交界区域及钢筋混凝土结构梁柱节点的三维温度场的求解。

The white slurry was obtained by means that the mixed solution of ferrous sulfate and ammonium sulfate (the mole ratio was 1.15∶1) was added into 0.200 mol·L~-1 sodium ferrocyanide solution, and the reacting temperature had been at 80℃ for 10 mins.

按照硫酸亚铁与亚铁氰化钠物质的量比为1.15：1，将硫酸亚铁和硫酸铵混合溶液加入浓度为0.200 mol·L-1的亚铁氰化钠溶液中，80℃下反应10 min得到白浆。

With this sleight, we optimized the experimental conditions such as the prescription of extraction solution, ratio between solution and sample, experimental temperature and extraction duration, and proposed a standard procedure of the sample pretreatment for 1H NMR finger-print experiments of tea.

针对生物指纹识别实验中样本体系复杂及化学组分含量多等特点，利用主成分分析对检测样品质控的多因素进行综合分析，最终确立了茶叶中化学成分提取制备的实验条件。

Under the assumption that the feasible region of the problem is n dimension, if the algorithm is terminated after finite step, the point obtained must be a global optimal solution of the problem, else each accumulation point of sequence {vk} which the algorithm produces must be a global optimization solution of the problem.

在问题的可行域是n维的条件下，如果这个算法有限步后终止，得到的点必是问题的整体最优解；否则，该算法产生的点的序列{vk}的每一个聚点也必是问题的整体最优解。

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％。