作为结果的

According to the standard of drought and waterlog in hydrology, this article gets such results: compared to basin line (1961-1990), during the following one hundred years, flux at Yingluoxia hydrological station has the trend to reduce with time, and probability of normal year will decrease, flux will polarize.

利用英国Hadley气候中心区域气候模式PRECIS模拟分析IPPC2000年发布的《排放情景特别报告》中给出的四种排放情景时输出的结果，将结果中2011-2100年50km×50km网格尺度上的日降雨量和日最高、最低气温作为VIC模型的输入，模拟出未来近百年间黑河上游地区径流的变化过程。

The result showed that Imperata cylindrical, Digitaria sanguinalis, Erigeron acer Xanthium sibiricum and Hedyotis auricularia are the species with high tolerance to heavy metal pollutions adapted to the adverse conditions of wastelands. These species can be used as pioneer plants for recovety of the vegetation in the manganese-mined wastelands. The individual event pollution index of the heavy mentals, compared to their background values are higher than 2, with Pb as an exception, indicating that the soil in these areas has been contaminated and that Mn and Cd are the elements creating most serious pollution problems.

结果表明，白茅、马唐、飞蓬、苍耳、耳草对重金属有较强的耐性，而且能适应废弃地的不良环境，可作为锰矿废弃地生态恢复的先锋植物；用3种不同的背景值对废弃地土壤重金属污染程度的评价结果是一致的，除Pb外，5种重金属元素单项污染指数均大于2，表示被污染，其中以Mn、Zn、Cd污染最为严重。

ABSTRACT This dissertation, based on the theories of geography, ecology, economics, sociology and environmental sciences, has analyzed the impact of transition between cultivation and pasture animal husbandry on the mechanism of desertification in Kerqin Sandy Region, of which behavior mechanism of local people was emphasized. The changing direction of integrated land desertification control strategy in semi-arid regions was discussed after having explored the primary reasons of estrepement, overgrazing and excessive firewood gathering. Followings are the main research works having been done.

本文选取科尔沁沙地作为研究区域，以两种最主要的土地利用方式、也是两种最主要的生产方式——农、牧业作为研究对象，依据地理学、生态学、经济学、社会学与环境科学的基本理论与方法，基于现有研究资料的系统整合，结合野外调查的结果，从更加综合的角度，来研究农、牧业选择变化对沙漠化过程的影响机理，从农、牧业选择变化的角度来揭示&滥垦、滥牧、滥樵&的本质，进而寻求中国北方半干旱地区生态环境综合整治的对策。

The results in this paper are concluded as follows:(1) Rolling contact fatigue has been used to examine the interfacial reaction products and study the mechanism of ion beam intermixing effect on the adhesion of Cr-N coating on steel by IBAD.

对多次冲击条件下薄膜的失效抗力及其与薄膜力学性能之间的关系进行了初步探讨，得到如下结果：（1）用滚动接触疲劳法检测离子轰击导致的界面反应产物和研究离子束共混对钢基体上IBAD沉积Cr-N薄膜结合强度的影响本质，结果表明，滚动接触疲劳能有效地分析界面最薄弱位置和评估界面反应产物，滚动接触疲劳引起的剥落可作为研究界面反应产物对结合强度影响的根据。

The research results indicate that LED integrated photopanel as interior illuminant, which emit monochromic light such as red light(660～680nm)and blue light(430～450nm), not only cover with spectrums absorbed by the plant or algae for photosynthesis, enhance the light energy absorbed by chlorophyll a and the growth of Spirulina platensis, increase greatly microalgal biomass and the its content of photosynthetic pigments; but also decrease enormously the absorption spectrums not need for photosynthesis, save energy at more than 38.75%.

从LED集成光电板的光电特性、光热效应、光衰减性、光辐射特征与植物和藻类光吸收特征的相匹配性及LED辐射单色光对螺旋藻的光合色素含量的影响等几方面，分析研究了LED集成光电板作为光生物反应器内部光源的特性及可行性，研究结果表明，LED集成光电板作为光生物反应器的内部光源，它所发射的单色光谱红光660～680nm、蓝光(430～450nm，不仅能覆盖植物和藻类光合作用所需要吸收的光谱能带，促进叶绿素a对光能的吸收和螺旋藻的生长，增强光合作用，使细胞生物量与光合色素含量显著提高；而且不被吸收的光谱减少，节能达38.75％，无疑它将是光生物反应器潜在最有效的光源。

By the test of the burning characteristic of nitramine propellant, it was found that sent the pressure and burning rate curve varied almost linearly.

通过对硝胺发射药燃烧特性的测试，发现硝胺发射药的燃速压力曲线几乎是一条直线；由落锤冲击实验，认为硝胺发射药的低温力学性能还需进一步改善；根据弹道试验所得到的低温感硝胺发射药的初速和膛压结果，以及对试验火炮的烧蚀结果，证明了低温感硝胺发射药可作为中大口径火炮装药的可行性

objective:to analyze the difference between mammary duct ectasiaand plasma cell mammitis.methods:the data of 24 cases of mde and 28 cases of pcm,including clinical manifestations,distinguished diagnoses,surgical therapy,pathological results,were analyzed.results:the clinical manifestations of mde are nipple discharge and breast mass,which should be distinguished with breast mass and early stage of breast cancer.the treatment is local resection.major pathological changes are duct ectasia and obvious periductal inflammatory changes.the clinical manifestations of pcm are breast mass and inflammatory changes,which should to be distinguished with advanced breast cancer and inflammatory breast cancer.the surgical treatment is extensive resection.the major pathological changes are inflammatory reaction and multiple abscesses in breast tissue.conclusion:mde and pcm are significant different,and they are different progressing stage of disease,thus the two diagnoses are independent.

目的：分析乳腺导管扩张症和浆细胞性乳腺炎临床上的差异。提出各自独立诊断的论据。方法：结合24例乳腺导管扩张症和28例浆细胞性乳腺炎对两病的临床症状、鉴别诊断、手术治疗、病理结果进行比较分析。结果：乳腺导管扩张症临床表现为乳头溢液和乳腺肿物，主要与乳腺肿物和早期乳腺癌鉴别诊断，手术以局部切除多见，病理表现为导管扩张及导管周围明显炎性改变。浆细胞性乳腺炎临床表现为乳腺肿物和炎性改变，主要与晚期乳腺癌和炎性乳腺癌鉴别诊断，手术切除的范围较大，病理变化以乳腺组织的炎性反应和多发性脓肿为主。结论：乳腺导管扩张症和浆细胞性乳腺炎有明显的差异，应作为这两种疾病独立诊断。

In this thesis, the reaction of methanol conversion into hydrocarbons on HZSM-5 and SAPO molecular sieves, which is of great importance to industry, is selected as probe reaction to get deeper insights into the structure of solid catalysts and the interaction of reactants with catalysts during adsorption and catalytic reaction by solid state NMR.

本论文主要以固体NMR为研究手段，以甲醇制烃类作为探针反应，详细研究了催化剂的结构、吸附过程中反应物与催化剂的相互作用、反应过程中反应物与催化剂的相互作用，主要取得了如下结果： 1 原位MAS NMR实验结果表明，甲醇制烃类的过程是通过&碳池&机理来实现，&碳池&的组成随反应的进行而变化，在反应前期，&碳池&由饱和烃类构成，随着反应的进行，饱和烃类和不饱和烃类共同组成&碳池&。

Arbitrary waveform generator is widely used in experiment and practical work as signal sourer. Apply the HSO function of 8OC198KC MCU to generate PWM waveform, then use the PWM to compose arbitrary waveform. The concrete hardware control circuit and the software realization method are presented. Then take the three-phase SPWM waveform generator for example, pot forward the application circuit and show the result of test. Experiment shows that the waveform distortion of sine, triangle and sawtooth is small and the operation is simple. The performance is high.

任意波形发生器作为信号源，在实验教学和实际工作中有着广泛的应用；应用Intel公司80C196KC单片机的HSO功能产生PWM波形，再由FWM波合成频率在20~100Hz之间的任意波形；设计了具体的硬件控制电路和详细的软件实现方法，并以三相SPWM波形发生器为例，给出了实际应用电路及其测试结果；实验结果表明，该波形发生器产生的三相正弦波，三角波、锯齿波失真度小，操作简单，直观，性能价格比高。

The results are unsure for experimental use;The rabbit's corneas that were removed with upper-half of corneal limbal epithelium lamella and erased the center corneal epitheliums were transparent with intact corneal epithelium;In the approach,the corneal and limbal epitheliums were burned with a cotton swab socked in 1 mol/L NaOH,there were 4 rabbits' corneal stroma happened perforation or ulcer and symblepharon,and the other one presented corneal epithelium phenotype.This is an applicable method to create the pathological model of corneal limbal stem cell total deficiency.

结果表明，处理后4周，全周角膜缘上皮板层手术切除，中央角膜上皮层用1 mol/L NaOH擦除的5只试验家兔角膜表面全部血管化、结膜化，未发生睑球粘连，角膜基质胶原纤维完整未见溃疡、穿孔等病变，细胞印迹学检查为结膜表型，可作为实验性角膜缘干细胞移植的病理模型；全周角膜缘上皮板层手术切除，中央角膜上皮用生理盐水擦除的5只试验家兔，有2只为结膜表型，另3只为角膜表型，观察期内结果不稳定；半周角膜缘上皮板层手术切除，中央角膜上皮层用生理盐水擦除的5只试验家兔，角膜表面透明，全部为角膜表型；直接用1 mol/L NaOH擦除角膜缘和中央角膜上皮的试验家兔，有4只角膜基质胶原纤维断裂、溶解，并伴有严重的溃疡、穿孔、睑球粘连等病变，不能用于移植试验，另1只角膜表面透明，未见结膜和新生血管长入，细胞印迹学检查为角膜表型。

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。