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The authors mainly analyzed the cause of formation and the status of soil and water loss in blackland, and using the grey system theory to build a model to forecast the rate of the change about physical and chemical of blacksoil. At the same time,the prevention and cure measures and new technology of monitoring soil and water loss on sloping land in blackland are presented.

就黑土区水土流失的成因及现状进行分析，利用灰色系统理论，对黑土区土壤的主要物理化学性状进行建模预测，预测出未来黑土区土壤的理化性状的变化趋势，同时论述黑土区水土流失的防治及监测的技术研究进展。

Firstly, electrization knowledge related to the research is introduced. After a deep study on various contact loss detection techniques, especially on the electric arcs detection techniques, we draw the conclusion that the untouched detection technique based on phototube sensor can acquire exact contact loss information, and will to be the leading technique for contact loss measurement in future. Secondly, combining with the special railways system in our country, we analyze the cause of the arcs, and the influence on the power supply system and the on board traction drive due to the arcs in detail, and study the arcs' spectrum characteristic. We also analyze detecting principles and put forward with a method - using phototube sensor to detect the contact loss arcs, conceive the configurations and detection flows of the measurement.

文章通过对电气化铁道相关知识的了解及对国内外离线检测技术的深入了解，尤其是对离线电弧检测技术的了解，总结出了基于光电传感器的非接触离线电弧检测系统能够得到准确的弓网离线情况，并且是国内外检测技术的发展方向；文章详细的分析了离线电弧产生的原因，电弧对机车牵引动力的影响情况，研究了我国铁路系统中离线电弧的光谱特征分布；分析了系统的检测原理，提出了采用光电传感器实现对离线电弧进行检测的方法，并设计了"电力机车弓网离线电弧检测装置"的检测功能和管理功能，规划了系统的组成结构及检测流程。

It is very important to get the hair loss symptom diagnosed, to know the root cause of hair loss.

非常重要的是让脱发症状诊断，知道的根源脱发。

It shows in clinic as tooth sensitivity, pulpitis,periodontitis,food impaction ,deformation of basifacial caused of loss of occlusal height, temporomandibular disorder syndrome, etc. The wear property of artificial tooth material will lead a direct effect to restoration result, when it exists in oral environment. It will cause tooth enamel loss too much in a very short period, if the wear property of artificial tooth superior to tooth enamel; but if it is inferior to tooth enamel, serious wear will occur on restoration occlusions, which will lead to loss of bite functions and even decrease of occlusal vertical dimension, disorder of bite functions, etc. Therefore, it is important to artificialtooth material not only it"s biotic compatibility, mechanical function, chemistry property but also it"s wear property.

当口腔中存在修复体时，人工牙材料的磨耗性能也直接影响临床修复的效果，当其磨耗性能强于天然牙釉质门时，将会引起天然牙釉质过度磨耗；当其磨耗性低于天然牙釉质时，又会在较短时期内引起修复体咬合面磨损过度，失去咬合功能，严重者甚至出现咬合垂直距离降低，咬合功能紊乱等症状因此，对于人工牙材料除了考虑生物相容性、机械性能及化学性能外，还应考虑到材料的磨耗性能，而磨耗率的测定一直是评价天然牙及人工牙磨耗性能的优越指标之一。

Needle taking place is commonly used the rescue that changes cure and danger to weigh a patient at patient of children, tumour, in infusion, because secure not firm outside can bringing about syringe needle slippery haemorrhage to be in charge of, cause local strut, aching, serious person can send infiltration of the certain pharmaceuticals that change cure to cause subcutaneous tissue hypodermically necrotic or the liquid cannot be defeated in time note and illness of incur loss through delay, new puncture increases the patient's anguish not only, also increased economic burden to also can be affected at the same time to the patient nurse working quality, the course relapses clinical experiment, my division adopts vein to accept the annular and fixed method of buy needle, obtained better result, introduce as follows now. 1 method is taken fixed stick (needle taking place is deployed) together, the disinfection that wide 10cm controls wraps cloth, two paragraphs of end are seamed on after sticking glue to buckle vein to leave buy needle puncture to succeed, convention is secured with adhesive plaster, next the ground degree of tightness will take stalk of handle of buy pinhead, needle, needle to be in firmly aptly fixed and fixed stick , next annular in blood-vessel twine stick on stick buckle. 2 experience apply this method to secure vein to left buy needle method to reduce the patient's anguish, reduced cost, provided mobile space for the patient, also avoid heparin cap prolapse, still facilitate observation puncture is nodded, do not affect hematic use, gauze pad can alleviate heparin cap is oppressive and unwell, reduce infusion pollution.

概要： 留置针常用于小儿、肿瘤患者化疗及危重患者的抢救，在输液中，由于固定不牢可导致针头滑出血管外，引起局部肿胀，疼痛，严重者可致某些化疗药物渗入皮下造成皮下组织坏死或液体不能及时输注而延误病情，重新穿刺不仅增加病人的痛苦，也给病人增加了经济负担同时也会影响护理工作质量，经过反复临床实验，我科采取静脉留置针的环形固定方法，取得了较好的效果，现介绍如下。1方法取固定贴一块，宽10cm左右的消毒包布，两段端缝上粘胶扣静脉留置针穿刺成功后，常规用胶布固定，然后将根据松紧适宜将留置针头、针柄、针梗处牢牢固定固定贴，然后在血管中环形缠绕粘上粘扣。2心得应用此方法固定静脉留置针方法减少了患者的痛苦，降低了费用，为患者提供了活动的空间，也避免肝素帽脱垂，还便于观察穿刺点，不影响血运，纱布衬垫可缓解肝素帽压迫不适，减少输液污染。

Some views think MBO have cheating operation that lead to the state assets losses; I think MBO , as a kind of comparatively ripe system , its must not cause the loss of state assets , the objective factor influenced state assets price is much, higher or lower than net assets price may not reasonable , may not unreasonable either, the cause leading the loss of state asset is unsufficiency condition and not canonical means. We should consider interior employee especially outstanding the historical contribution factors of administrators.

笔者认为MBO作为一种较为成熟的制度，其本身并不必然导致国有资产流失，但国内影响国有资产合理定价的客观因素多而复杂，国有资产转让价格高于或低于净资产未必合理，也未必不合理；国有资产流失的原因是在条件不充分的情况下，用不规范的方法实施MBO；某些企业作低价是因为考虑了内部职工尤其是优秀管理者的历史贡献因素；当前首要目标是改制，提高社会整体经济效益，应在合理范围内以法律形式明确管理层收购价格优惠制度，促进MBO的顺利进行。

Of cause planners, including the highwaymen with fabulous sums of money and enormous power at their disposal, are at a loss to make automobiles and cities compatible with one another.

当然规划者，包括拥有惊人钱财和庞大处置权的拦路抢劫犯，都不知如何使小汽车同城市相互兼容。

There are more than 1900 large-scale textile factories, and according to the layout of the industry, 80% of the lanoline import distributes in Zinxiang, Inner Mongolia, Gansu, Tianjin and Jiangsu, etc. About 500,000 tons wool raw material should be imported to be used for producing wool products, and meanwhile, 16,000,000 tons of wastewater will be produced. This will both cause the pollution problems and the loss of some very important raw materials, and the loss values about 1,800,000,000 RMB and even more.

每年耗用约50万吨羊毛原料进行生产毛料产品，同时产生1600万吨洗毛废水，在污染环境、浪费水资源的同时，工业原料羊毛脂、制药原料羊毛醇、羊毛酸和化妆品重要原料羊毛油等，却随废水一起大量流失，全国每年流失总价值约为18亿元人民币以上。

According to the calculation result of the imbalance response amplitude by XLROTOR,this paper analyzes and calculates the loss of saw kerf caused by the imbalanced amounts of main parts and makes this conclusion;To reduce the loss of saw kerf,it is more efficient to generally control the imbalance amounts cause by the different materials of main parts than to improve their tolerance.

依据XLROTOR的不平衡响应振幅计算结果，对主要零部件不平衡量造成的锯路损失进行了分析后得出；为了减少锯路损失，总体上控制各主要零部件因材质不均造成的不平衡量，比提高它们的公差等级更为有效。

New studies indicate that as Zn and Cu are out of balance in your body, it can really cause hair loss to take place.

新的研究表明，锌和铜的失去平衡在你的身体，它可以真正导致脱发发生。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。