自然发生的

During the Last Interglaciation it was the forest, mainly composed of broadleaves, or forest-grassland at the east and middle part of the Chinese Loess Plateau, and was the forest-grassland at the west part of the Chinese Loess Plateau. It changed to the forest or forest-grassland at the most part of the Chinese Loess Plateau in the Holocene, some kinds of hardwood broadleaves dispersing at the warm temperate and the tropic zones appeared. Now the vegetation at the Chinese Loess Plateau inherits from that during the Holocene, the vegetation have been heavily destroyed owing to the human being actions. The vegetation protection at the Chinese Loess Plateau is a significant problem.

末次间冰期期间气候温暖湿润，黄土高原的中、东部地区主要发育了以落叶阔叶林为主的森林或森林草原植被，黄土高原西部地区主要发育的是以针叶林为主森林草原植被；全新世期间黄土高原的植被状况发生较大变化，黄土高原的大部分地区为森林植被或森林草原植被，植被中还有暖温带落叶阔叶林，并含有少量亚热带种属；现代黄土高原的植被主要还是继承了全新世以来的植被状况，但是由于人类活动的加剧，对黄土高原的植被产生了毁灭性的破坏，因此，如何保护黄土高原的自然植被是我们面临的一个严峻的现实问题。

In American inchoate development in the course western, as a result of policy oriented cause annihilative to land natural resources development to use, changed the structure of land ecosystem and function, make land natural resources sufferred serious destruction, cause the penalty that gives nature, since May 1934, what the United States happened to stun the world is a chain of " black storm " incident, the lesson is extremely deep.

在美国早期开发西部的历程中，由于政策的导向造成对土地资源毁灭性的开发利用，改变了土地生态系统的结构和功能，使土地资源遭到了严重的破坏，诱发出自然的惩罚，从 1934年 5月起，美国发生了震动世界的一连串&黑风暴&事件，教训极其深刻。

This project was conducted starting with the three interrelated subjects the structural characteristics of desertification landscapes in different bioclimatic zones, desertification driving factors and their function mechanism, and the dynamic model of landscape space for the occurrence and development of desertification in representative desertification regions and on the basis of in-depth studies of the relations between landscape structural characteristics and processes of desertification and their stability; the driving force of different time-space scales of desertification and their proportion, manifestation form, and action mechanism in the desertification processes; and the establishment of threshold conditions for the surface wind erosion and has achieved important progress in the definition of desertification conception

本课题从三个相互联系的专题（即不同生物气候区荒漠化景观的结构特征、荒漠化驱动因素及其作用机理、典型荒漠化地区荒漠化发生与发展的景观空间动力学模型）入手，在深入研究荒漠化景观结构特征与过程的关系及其稳定性，不同时空尺度的荒漠化过程驱动力及其在荒漠化过程中所占比重、表现形式及作用机制，地表风蚀临界条件的确定等内容的基础上，虽未建立荒漠化景观空间动力学模型，但在沙漠化概念，末次间冰期以来沙漠化过程时间序列和特征冷暖时期沙漠、沙地空间分布格局，现代沙漠化过程中自然因素和人文因素的作用、贡献率、沙漠化土地对气候的反馈作用以及风蚀临界值，沙粒跃移轨迹参数和能量分布，我国沙漠化防治思路和对策，沙尘暴区划和沙尘暴指数等方面取得了重要进展。

When a scientist explains an immediate event, he operates on the assumption that this is a regular universe where everything occurs as a result of the orderly procession of cause and effect. Yet when the naturalist comes to metaphysics, to the origin of the entire cosmos, he abandons the principle of sufficient reason and assumes that the cause of everything is an unthinkable causelessness, chance, or fate.

当科学家解释即时事件，他操纵就假设这是一个经常性的宇宙那里一切的发生是由於有秩序地游行的原因和影响，然而当自然说到形而上学，以原产地的整个宇宙，他没有放弃原则，有足够的理由和假设的原因，一切是不可想像的causelessness ，有机会，还是命运。

In England, on the other hand, a range of ideas especially congenial to Englishmen of that day, explained the claim of Equity to override the common law by supposing a general right to superintend the administration of justice which was assumed to be vested in the king as a natural result of his paternal authority. The same view appears in a different and a quainter form in the old doctrine that Equity flowed from the king''s conscience —— the improvement which had in fact taken place in the moral standard of the community being thus referred to an inherent elevation in the moral sense of the sovereign.

另一方面在英国，则用一些特别适合于当时英国人口味的观念，来解释&衡平法&主张的优于普通法，这些观念假定国王作为其宗主权的自然结果，是应该被推定为具有监督公正执行的一般权利的，过去有这样一种旧的学理，认为&衡平法&来自国王的良心——这种改进在实际上已经发生在被指为主权者在道德意义上的一个固有的提高的社会道德标准中了，这种见解是和前述的见解相同的，不过表现于一种不同的和一种更为离奇古怪的方式中而已。

If the resistance rises to the pre-set number(1245－1470Pa), the controller will send out signals, first to control the lift valve to do these operations: close the hole of the valve board to cut air current and stop filtering, and then to open the electromagnetic pulse valve to blow compressed air whose pressure is 0.5-0.7Mpa into filter bag with a short time(0.01－0.12s).

当含尘烟气由进风口进入灰斗以后，一部分较粗尘料在这时由于惯性碰撞、自然沉降等原因落入灰斗，大部分尘粒随气流上升进入袋室，经滤袋过滤后，尘粒被阻留在滤袋外侧，净化的烟气由滤袋内部进入箱体，再由阀板孔、出风口排入大气，达到收尘的目的，随着过滤过程的不断进行，滤袋外侧的积尘也逐渐增多，从而使除尘器的运行阻力也逐渐增高，当阻力增到预先设定值（1245－1470Pa）时，清灰控制器发生信号，首先控制提升阀将阀板孔关闭，以切断过滤烟气流，停止过滤过程，然后电磁脉冲阀打开，以极短时间（0.01－0.12s）向箱体内喷入压力为0.5－0.7Mpa的压缩空气，压缩空气在箱体内迅速膨胀，涌入滤袋内部，使滤袋产生变形、震动，加上逆气流的作用，滤袋外部的粉尘便清除下来掉到灰斗，清灰完毕之后，提升阀再次打开，除尘器又进入过滤状态。

The classical Roman law established an obligatio - contractus system with formalism and numerus clausus as the key features of contract; the medieval glossators accepted this model and redefined the contract with the doctrine of causa; the French law family continued this tradition and made the doctrine of causa the...

古典罗马法以形式主义和类型法定为契约概念的特质，构建了债一契约的制度模式；中世纪注释法学家遵循这一模式，以原因理论重构了合同的概念，这一传统为法国法系继受，使原因理论成为破译其合同概念及相关制度设计的密码；在德国，自然法理论、理性法学和历史法学结亲，以法律行为理论重组合同的要素，使其含义在历史上再一次发生根本性断裂；20世纪以后，制度的变迁又催生了新的合同说明模式。

On the basis of referring the foreign and domestic literatures and systematically generalizing the former research results, firstly, from the adsorption gas, coal spontaneous combustion and the heat resolves, thesis analyzes the ignitable gas occurrence. Secondly, though the experiment station of coal spontaneous combustion, thesis obtains the critical temperature 60 ℃～ 100 ℃, splits temperature 100℃～ 150 ℃, the fission temperature 150℃～ 180 ℃ and the speed-up temperature 210℃～ 250 ℃ and ignitable gas release rules in the several temperatures sections according to the results. Finally according to fire resource and the catastrophe theory, ignitable gas explosion characteristic and the influence factors have been conducted of the qualitative investigation and the quantitative determination. The gas explosion control technologies are put forward. It has built the certain foundation for the effective prevention gas explosion accident occurrence.

本论文采用理论分析和实验模拟相结合的综合研究方法，首先从煤层吸附瓦斯、煤氧复合过程及煤高温热解三方面对采空区可燃性气体的产生进行分析；其次通过对大型煤自然发火实验测试台的应用，根据实验结果得到临界温度60℃～100℃、干裂温度100℃～150℃、裂变温度150℃～180℃和增速温度210℃～250℃等几个温度段的可燃性气体释放规律；最后根据爆炸引火源，结合瓦斯爆炸流变-突变理论，对可燃性气体爆炸特性及影响因素进行了定性研究和定量测定，提出瓦斯爆炸事故的控制对策，为有效预防瓦斯爆炸事故的发生打下了一定的基础。

Using an epidural catheter placed at the level of T1-2 or T2-3, seven patients scheduled for awake CABG received TEA for total arterial myocardial revascularization after partial lower sternotomy.Six patients remained awake and spontaneously breathing during the entire procedure, but one required intraoperative intubation for respiratory distress caused by phrenic nerve palsy. Hemodynamics were stable throughout surgery without significant arterial hypercarbia. All patients rated TEA as "good" or "excellent."

七个患者被安排在清醒的CABG接受TEA，在部分下肢手术后，使用安置於 T1-2 或 T2-3 的硬膜外导管，以进行总动脉的心肌血管更换术，其中六名患者保持清醒，并且在手术过程中自然地呼吸，但是一位患者因为隔膜神经瘫痪导致呼吸困难，而需要进行手术中的插管，血液动力学在手术过程中是稳定的，并未发生动脉的血中二氧化碳含量过高，所有患者认为TEA是&良好或极佳的&。

Professor Chris Stringer, from the Natural History Museum, London, UK, commented: If the the Neanderthal genome data show little evidence of potential hybridisation, that would fit with my view from the fossil evidence that, while interbreeding was probably possible, it may have occurred only rarely, with trivial impact on modern humans.

克理斯·Stringer教授，从自然历史博物馆，英国，伦敦，作注解：如果尼安德特人的基因组数据没有给出潜在的杂交的证据，那将从化石的证据适合我的观点那，当杂交繁殖是很可能可能的时候，它有可能只是很少发生，伴随着微不足道的对现代人类的影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。