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Cows in the perinatal period were used in the experiment.Through clinical symptom and laboratory examination, they were divided into five groups that were healthy multiparity cows,healthy primiparity cows,cows with fatty liver disease, cows with ketosis and cows with rtention fetal membrance. We experimented blood of antepartum 15,8,1 day and postnatal 1,8,15,22 day,then assayed Thyroid hormone, thyroid-stimulating hormone, Iodine ,Selenium, GSH-Px in blood-serum. At last,we analysed data by statistical way .

本实验以处于围产期的57头奶牛为研究对象，通过实验室检查结合临床症状查出其中健康的经产牛、健康的初产牛及患酮病、患脂肪肝、患胎衣不下的自然病例，在奶牛产前15天，产前8天，产前1天，产后1天，产后8天，产后15天和产后22天分别采颈静脉血，检测血清中甲状腺激素(T4和T3)、促甲状腺激素、碘、硒和谷胱甘肽过氧化物酶的含量、摸索出其动态变化并作了统计分析。

Cows in perinatal period were used in the experiment. Through clinical symptom and laboratory examination, they were divided into six groups that were healthy multiparity cows, healthy primiparity cows,cows with fatty liver disease, cows with ketosis and cows with retention of fetal membrance, mastitis in cows.

本实验以进入围产期的57头奶牛为研究对象，通过实验室检查结合临床症状找出其中健康的经产牛、健康的头胎牛及患酮病、脂肪肝、胎衣不下、乳房炎的自然病例。

Although a great deal work have been done to theoretical research of beams with two cantilevers structure, we paid attention to test systems used in beams with two cantilevers mechanics test less. And school, incorporated teaching and researching, needed this small or medium octavo test system to develop teaching and researching. So joining in this development item of test system established by school, the thesis aimed to develop a set of simple, economical and applicable test system of reinforced concrete beams with two cantilevers to serve for teaching and researching, and make it a powerful supplement in structural experiment field.

我们尽管已经对双悬臂结构的理论研究做了大量的工作，但是对双悬臂结构进行力学试验的试验体系相对较少，而作为教学与研究为一体的学校迫切需要这样的中小型试验测试体系开展教学与科研，故本课题结合学校已经立项的试验系统开发项目力图研制开发一套简单、经济、适用的钢筋混凝土双悬臂梁试验系统为教学与科研服务，同时作为对双悬臂梁结构试验领域的补充。

And multiobjective optimization of complex structure with the help of neural networks and uniform experiment design, etc. As an example to illustrate the theory of this thesis, Robust design of a 10m antenna reflection part with circular paraboloid surface is proceeded. Antenna attracted people's research in these years because it is structure with very high precision.

作为实例，论文中对某10m圆抛物面天线反射体进行了健壮性设计，得到了原问题的健壮最优解，不仅实现了原系统的性能优化，同时使天线的性能在受到可控因素较大的范围的变异时所产生的变异达到最小，实现了系统的健壮性。

The changing rule of the hardness of SZ-01 photosensitive resin surface after curing with temperature, illumination distance, and illumination time was studied with orthogonal experiment and recurrent neural network methods. A group of reasonable technique parameters were found with genetic algorithm optimization, which can make the hardness of photosensitive resin after curing the highest.

综合利用正交试验和递归神经网络的方法，研究了光敏树脂SZ-01在光固化成形后表面硬度随着环境温度、光照距离及光照时间的变化规律，并利用遗传优化设计的方法，找到了一组合理的工艺参数组合，使得光敏树脂固化后的表面硬度达到最大。

By carrying out the experiment of eight pieces of brick masonry walls with pilaster strengthened with glass fiber reinforced polymer and one piece of normal masonry wail with pilaster, the influence coefficient of pilaster, modified coefficient, statistic coefficient and effective participation coefficient are brought forward theoretically.

通过对1片未加固带壁柱墙体和8片玻璃纤维复合材料加固带壁柱墙体抗震试验的结果，在理论分析的基础上，给出壁柱影响系数、间接抗震抗剪承载力修正系数、统计系数和有效工作系数的表达式。

In Shaomin Shen's studio in Daqing, I think of life and death, yin and yang, when faced with over 2000 mouse's' bones repaired by overwork of more than ten assistants, five sets humankind bones endowed with the feathers of "Unusual Scene" specimen, a complete virus lab, virus lab process with work tables, vessel used for experiment, experimenters, slices, and specimen, and stimulant plague spot.

在沈少民的大庆工作室，我面对着十几个助手昼夜加班修复的2000多只老鼠骨架，5套完整的被赋予老鼠特征的人体骨架、"异相"标本的制作以及工作台、实验室的器皿、实验人员、切片、标本等一个完整的病毒实验室流程和模拟的瘟疫现场的场景，想到了生与死、阴与阳。

Under the condition of four successive plantation of leafy vegetables with the same amount of phosphorus and potassium, Urea, ammonium bicarbonate and their combined application with organic fertilizer experiment indicated that growth and yields of leafy vegetables in the urea treatment was better than those in ammonium bicarbonate treatment, but the difference declined with temperature decreasing.

连续种植4茬叶菜，在磷、钾肥用量一致的情况下，尿素、碳铵及其配施有机肥的试验表明：尿素处理的生长状况和产量结果好于碳铵处理，但这种差异随气温降低而逐渐收窄；尿素、碳铵分别配施有机肥的两处理产量差异较小。

Experiment 1 (chapter 6), adopting procedures of the binary lottery games, with leading elements of information conditions into the practice, tested Nash bargaining model systematically and found that, under complete information conditions, axiom 4 was obviously rejected and axiom 3 which was reproachable to some extends, however was supported and therefore Raiffa solution was not observed; And associated with those, significant effect of information conditions and effect of interpersonal payoff comparisons with bargaining behaviors were founded.

结果发现，在完全信息条件下，公理4遭到明显拒绝；而引起一定程度上非议的公理3却能获得支持，故也未观测到Raiffa解的存在；与此相关，发现了议价者行为上的显著的信息条件效应和人际支付比较效应；在此基础上，作者对Nash议价模型进行了修正。

Three kinds of cutting material were selected to machine stainless steel machining experiment such as ceramic cutting tools, cermets cutting tools and coated carbide cutting tools, in which the best range of each kind of tool material was founded. For example, LT55 was suitable to be machine lCrl8Ni9Ti as the cutting speed surpasses 120m/min and have a good wearable property.(3) Surface roughness was measured under different cutting conditions. Feed rate played the most important role in impacting surface roughness, and then cutting speed.(4) Chip patterns in different cutting speed with various cutting materials were analyzed. With the increase of turning speed, chip became shorter and was easy to be broken. For instance, serration chip appeared in high sped turning stainless steel with LT55;(5) Work hardening of austenitic stainless steel was analyzed.

陶瓷刀具LT55适合在Vc=120m/min以上切削加工不锈钢，耐磨性好；③通过试验研究了不同刀具材料高速车削加工1Cr18Ni9Ti不锈钢时的表面粗糙度，其中进给量对表面粗糙度的影响最为显著，其次为切削速度；④分析了不同刀具材料在不同切削速度下加工1Cr18Ni9Ti不锈钢的切屑形态，随着车削速度的提高，切屑变短且易断屑，其中LT55陶瓷刀具切削加工时产生了锯齿状切屑；⑤分析了奥氏体不锈钢的加工硬化机理及其对刀具磨损的影响；⑥根据试验结果分析在不同切削条件下切削不锈钢的刀具磨损形式及其磨损机理。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。