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However, in the face of the continual negative effect of science and technology and the interior problem of the science education, people begun to turn over to think the science curriculum and consider that the science curriculum should reflect the cultural character of science, envisage the negative effect of science and technology, pay attention to the functi...

但面对科学技术负面效应的不断显现和科学教育内部问题的接踵而至，人们开始反思科学课程，认为科学课程必须反映科学的文化属性、正视科学技术的负面效应、关注科学在精神层面的育人功能、尊重儿童的个性发展、培养学生全面认识、理解、运用和评价科学的意识和能力。

Let 〓, then:(1)〓, i∈G (2)〓,〓, i∈G The economic meaning of the theorem is that the change of the supply is reverse with the change of the price, the changing rate of the i-th price equals the inverse number of the changing rate of k〓, and the sum of the effect of P〓 to k〓 and the effect of P〓 to c〓 which is weighted by P〓 is 0, i∈G.

定理2.8：(1)〓，i∈G (2)〓，i∈G 此定理的经济含义是任一种产品供给量的变动与该种产品价格的变动呈反向关系；第i种产品价格的变动率等于k〓变动率的相反数，P〓对k〓变化的效应与P〓对c〓变化的效应以P〓加权后的和为0，i∈G。

Based on investigating the short and intermittent structural plane, surrounding rockmass of the huge underground powerhouse in Three Gorge has been divided into five statistical similar areas according to its characteristic of rockmass structure by applying structure plane network simulation. Distributed characteristic of structural plane has been studied and based on it mechanics macrocharacteristic has been studied:(1) It is the first time that based on the result of structural plane network simulation rockmass quality of every structure area has been studied with applying blurred information optimum seeking technique and be compared with and RQD method. The result indicated that it has better effect to evaluate rock quality with blurred information optimum seeking technique.(2) It is the first time that the interrelated relationship of the result of in-suit rockmass deformation test and fractal characteristic of structure on test point has been applied to determine rockmass deformation parameter. The question of evaluating deformation parameters of engineering rockmass has been solved.(3) Anisotropy strength parameters have been determined by applying shear zones simulating method. The result indicated that there are different strength parameters in every structural area, after comparing the result of Fast Lagranian Analysis in continua number simulation method with that of method of weighted mean according to continuity. The result indicated that when a suitable reduction coefficient is been considered rockmass strength parameters can be simply and fast determined with method of weighted mean according to continuity where there is not enough test result.(4) Damage characteristic has been studied based on analysis fractal characteristic of structural plane network by applying fractal-damage coupling method. It is the first time that the concept of damage degree has been set up to evaluate rockmass quality according to the biggest principal damage.

通过对短小、断续性结构面统计特征的研究，将地下厂房区划分为五个岩体结构统计均质区，应用结构面网络模拟技术研究了各个岩体结构均质区结构面的发育分布特征，并以此为基础对岩体宏观力学特性进行了深入研究：(1)首次通过在结构面网络模拟计算结果的基础上，应用模糊信息优化技术研究了厂房区各个岩体结构分区的岩体质量并与岩体基本质量指标研究法、岩体质量指标RQD值研究法作了对比，结果表明以结构面网络模拟结果为基础，应用模糊信息优化技术进行岩体质量评价能够取得很好的效果，解决了工程岩体质量的定量评价问题；(2)首次通过对已有的现场大型岩体变形试验结果的分析及相应试验点岩体结构分形特征的研究，建立了结构面分布的分形维数和岩体变形指标间的相关关系，并首次应用这种相关关系根据结构面网络模拟及分形维数计算结果确定了缺少试验结果的地下厂房各工程部位的岩体变形指标而且应用于围岩稳定性计算，解决了工程岩体宏观变形参数的评价问题；(3)应用在结构面模拟网络图上模拟岩体剪切破坏带的方法，得出了岩体在不同方向上的强度参数，结果表明岩体的强度特性与结构面的发育方向和程度有着明显的关系，各个岩体结构均质区具有不同的强度参数；同时还通过应用拉格朗日差分法对岩体强度指标的数值分析并与按连通率加权平均计算法对比表明，按连通率加权平均计算法在考虑合理的折减系数情况下，可以简单快速地对缺少现场大型试验结果的具体工程部位实现岩体强度指标的估计，通过以上研究解决了工程岩体抗剪强度参数的评价问题；(4)通过结构面网络分形维数的研究，应用分形损伤耦合分析方法，研究了厂房区岩体的损伤特征，并首次引入"损伤度"的概念，建立了应用最大主损伤评价岩体质量的指标体系。

The addition of small amounts of phenazine (0.005-5.0%) induced a great change of color, morphology and properties of MC nylon. The modification effect was considered to result from the bydrogen bond between nylon-6 and phenazine. The effect of the di-model compund of PPQ on MC nylon is between that of he mono-model compound and phenazine.

少量(0.005—5.0％)吩嗪的引入使MC尼龙的颜色、形态及性能等发生巨大变化，改性体系被认为是氢键相互作用，PPQ双模型化合物的改性作用介于二者之间。

To review the effect of three pretreatment methods, principal component analysis and linear discriminant analysis were employed, and the result of analysis indicated that the experiment employing Na2CO3 as desiccant to pretreat the samples can improve the effect of detection significantly.

对实验数据进行主成分分析和线性判别函数分析以考察三种实验方法的检测效果，分析结果表明，采用Na2CO3对样品进行干燥处理后，可明显提高检测的效果。

Pass observation of clinical curative effect, cure can enhance Chinese traditional medicine fitness, improve immune function, control allergic source, the upper respiratory tract relapses the symptom such as infection, have main effect to reducing blood in the urine, albuminuria, draft the root of remembranous milk vetch, Asian puccoon oneself, yuan grass of armour of ginseng, madder, 37 ginseng, plain hill, horsewhip, Bai Maogen, n/bot glossy privet child group waiting for medicine square, heat up detoxify with Yu Qing, invigorate the circulation of blood whitewashs Yu, cool blood filling kidney of hemostatic, method of treating yin deficiency by reinforcing body fluid and nourishing the blood administer a law, achieve the goal that administer thoroughly. 1 data and method 1 · 1 clinical data: 186 patients all are outpatient service case of illness, accord with Minica to concern the diagnostic standard of purpuric sex nephritis, among them the male 105, female 81, come on on average age 8~13 year old, time sees a doctor after coming on 3 months ~1 year, have direct allergen 86, have apparent infection 20, the others cause of disease is same.

通过临床疗效观察，中药治疗能增强身体素质，提高免疫功能，控制过敏源，上呼吸道反复感染等症状，对减少血尿、蛋白尿起到主要功能，自拟黄芪、紫草、元参、茜草、三七参、川山甲、马鞭草、白毛根、女贞子等药组方，用于清热解毒，活血化瘀、凉血止血、滋阴补肾等治法，达到标本兼治的目的。1资料和方法1·1临床资料：186例患者均为门诊病例，符合Minica有关紫癜性肾炎的诊断标准，其中男性105例，女性81例，平均发病年龄8~13岁，发病后就诊时间3个月~1年，有直接过敏原86例，有明显感染20例，其余病因相同。

Through comparing and analyzing the wind speed in and out the slope,we find that natural wind has effect to the wind in riprap slope, both of which have uniform change trend, and with the distance from the inside of the riprap slope and block stone to the slope surface getting bigger, the natural wind effect gets lessening.

对护坡内外点的风速进行对比分析，得出大气风场对块石护坡和碎石护坡内的风场有影响，两者呈现出相同的变化趋势，且块石护坡和碎石护坡内的点距离坡面越远，受大气风场的影响越小。

On the basis of analyzing forces on the self-supported column, the superposition method in mechanics of material was used to calculate the steady deflection at top of the high column under both of weight and distributed wind pressure. The results show that the effect of weight to top deflection of the heavy weight high column can not be ignored and a formulation is deduced to express this effect.

在对自支承式塔设备建立合理的力学模型并进行受力分析的基础上，采用材料力学中的叠加法，计算了高塔设备在均布风载荷、自重联合作用下的塔顶静挠度，提出对于自重和长细比均较大的高塔，塔体自重对塔顶挠度的影响不可忽视，并推导出了计算这种影响的表达式。

In this model, not only natural convection that is caused by different vertical density, and the baffle effect of shearing stress caused by viscosity is considered, but also the effect of concentration distinction itself to leaky flow is considered

该模型不仅考虑了由于密度差引起的自然对流作用，粘滞性产生的切应力对水流运动的阻滞作用，还考虑了溶质浓度的差异对越流的影响。

The soil environment of solar greenhouse deteriorate with the growing ages increased and this causes the obstacle matters in soil of succession planting cucumber, mainly perform as soil physicochemical properties worsening, soil hypo-salinization, soil acidification. To solve these problems, corn and spring onion as catch crops were planted in summer after cucumber harvest that based on having no effect on cucumber production in solar greenhouse.. The experiment researched the effect of different catch crops on cucumber yield and soil physicochemical properties.

针对日光温室黄瓜生产中存在土壤理化性状劣化、土壤板结、盐渍化、酸化等土壤退化问题，在保证黄瓜产量的前提下，夏季休闲期选择玉米、大葱作为填闲作物，以农民传统的常规休闲作为参比对象，研究玉米、大葱对保护地土壤理化性状以及对黄瓜产量的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。