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The isopleth's surface and gradient change trend of carbon content in carbon-accumulation field are analyzed, the temporal and lateral change pattern of carbon budget in selected peatland sites are calculated, the effect and feedback of carbon-accumulation process on CO〓 content in atmosphere is investigated in this paper.

通过典型泥炭地实测资料,分析了聚碳场内泥炭品位等值面和泥炭品位梯度变化,计算并研究了三江平原典型泥炭地碳素收支的时空格局,探讨了聚碳作用对大气二氧化碳浓度的影响与反馈机制,分析了本区泥炭地聚碳作用在全球环境变化中的地位,同时针对聚碳环境和聚碳过程对泥炭性质和品位影响,对本区泥炭资源的保护和合理利用提出了建议。

Aimed at load-carrying mechanism, systematic study was made on the functions of basic topological structures and some functional structures of the cylinder head, such as sprayer jacket, ports, strengthen rib, jobbing sheet, etc., in the load carrying system. Moreover, the deformation characters of these structures in the processes of carrying and transmitting loads were also thoroughly studied by the thesis.

针对气缸盖承载机理,系统地研究了气缸盖中的基本拓扑结构和气缸盖中一些功能结构——喷油器护套、气道、气门导管座孔、中隔板和加强筋等结构在气缸盖承力体系中的作用,以及这些结构在承受和传递载荷过程中的变形特性。

The results show that BDT can be assembled on the surface of copper electrode to form monomolecular self-assembled membrane,and the membrane can efficiently inhibit the copper base corrosion in the 3% NaCl corrosion medium and acidic solution.

实验表明:BDT能够有效地组装到铜的表面形成单分子自组装膜,BDT自组装膜能有效地抑制铜基底在3%NaCl腐蚀介质以及酸性NaCl溶液中的腐蚀行为;缓蚀效率随组装时间的延长逐渐升高并趋于稳定,在pH值较低的溶液中仍具有较好的缓蚀效果;当BDT浓度为1.0×102 mol/L、组装时间为40 h时,铜电极的腐蚀电流最小,缓蚀效率最好。

51 Orchidaceous species discovered by way of investigation fall into 32 genuses with 41 sedentary plants, 7 adnascent plants and 3 saprophyte plants. Sedentary plants distribute in the communities are composed of panacea, fagaceae, rosaceae, ericaceae plants with life form geophytes.

在调查中出现的32属51种兰科植物中有41种地生兰、7种附生兰和3种腐生兰,地生兰中以兰属植物中的春兰、蕙兰分布最广,生长在松科、山毛榉科、蔷薇科、杜鹃科等构成的植物群落中,生活型为真地下芽植物。

In this research project, we have got a series conclusions:(1) there is no excess argon in the high-pressure white micas being in the orthogneiss;(2) The distribution of excess argon in eclogite is positive correlative with the ratio of Mg/, but negative with the ratio of Na/;(3) The in-situ analyses by using the method of laser probe 39Ar-40Ar show that the age radius from central to margin in a single grain of high-pressure white mica in eclogite;(4) There is no any evidence to prove that the excess argon in eclogite comes from fluid;(5) The excess argon in eclogite inherited from primitive rock during high-ultra high pressure metamorphism;(6) There is no excess argon in the eclogite when its surrounding rock is carbonate.

本项目用综合手段,研究了高压白云母中过剩氩的来源、赋存、分布与岩性、产状、矿物元素和矿物显微结构之间的相关关系,以确定过剩氩在高压白云母中赋存的主要控制因素。初步得出了以下结果:1、高压变质的正片麻岩中的白云母中不含过剩氩;2、高压白云母中过剩氩的赋存和Mg/有着正相关关系,而和Na/呈负相关;3、激光微区氩-氩分析表明,榴辉岩中的单颗粒多硅白云母存在年龄梯度;4、初步否定了高压白云母中过剩氩来自于流体的说法;5、初步认定,榴辉岩中多硅白云母中过剩氩主要是在高压-超高压变质过程中由内部继承的;6、在阿尔金及柴北缘等地围岩为碳酸岩的榴辉岩中的高压白云母不含过剩氩。上述研究结果将推动过剩氩成因研究走向深入。

By study of the medium-acid plutonic rock and its maric microgranular enclaves of the middle Gangdis〓 belt, this dissertation will discuss the characteristics of the Gangdis〓 medium-acid plutonie magmatism and the crust/mantle dynamics during uplifting of Tibetan Plateau from the sight of material and energy, and use'lithoprobe'to connect crust and mantle interaction and other geologic events.

中、新生代青藏高原岩浆活动强烈,沿雅鲁藏布江缝合带形成了著名的冈底斯构造—岩浆带,本篇博士论文以冈底斯带中酸性侵入岩及其中铁镁质微粒包体为研究重点,探讨冈底斯带中酸性侵入岩浆活动特征,从物质和能量的角度论述了高原隆升过程中的壳/幔动力学过程,利用"岩石探针"将壳/幔之间的相互作用和地质事件有机地结合起来。

History tells us that socialist market economy is a practica...

历史深刻启迪我们,社会主义市场经济是社会主义社会文明的现实选择,必须坚定不移地做好社会主义与市场经济相结合的文章;体制改革与制度调整是社会主义社会文明的建设机制,必须坚定不移地发挥改革在社会主义文明进程中的多层面作用;以人为主体的协调发展和可持续发展是社会主义社会文明的价值目标,在发展市场经济的过程中必须高度重视社会文明机制的建构。

The features of automobile panel die have been analyzed and described with discussion about organizing method of the feature information in Teamcenter,a PDM system.Different similarity has been adopted according to different feature property,classified weights have been adopted to solve the problem of the influence of different feature upon the solution hence implementation of cases retrievement.

新闻摘要:有效地利用覆盖件模具开发过程中的经验知识,能够极大地提高模具开发的效率,本文对覆盖件模具的特征进行了分析并对特征进行了描述,对实例特征信息在PDM 系统Teamcenter中的组织进行了探讨,针对不同的属性域采用不同的相似度表示,通过分级权重的方法实现了不同特征对解决方案的影响,实现了实例检索。

Sperry showed that the regenerated retinal axons always innervated the original sites of termination in the optic tectum. This experiment strongly disprove the resonance hypotheses proposed by Paul Weiss, who suggested that the nerve growth and synapse formation are largely random events, and the precision of connections between nerve cells emerged by selectively eliminating the inappropriate connections, only at later developmental stage.

Sperry的实验在支持Cajal假说的基础上,进一步明确发育过程中轴突的生长及突触的形成具有内在决定性,并且有力地反驳了当时占主流地位的由Paul Weiss于1930~40年代提出的resonance hypothesis,后者认为轴突的生长和突触的形成大多是一些随机事件,成年脑中的精确联系是通过对随机形成的不恰当联系进行选择地消除形成的。

In an amusing chapter entitled "L' poque des Duchesses", he recounts with relish the fancy-dress balls given by Count tienne de Beaumont, who "encouraged exhibitionism and transvestism" and "always managed to upstage his guests by appearing in one spectacularly androgynous costume after another, designed by himself."

在一个名为"公爵的时代(L' poque des Duchesses)"的有趣章节中,他津津乐道地叙述了艾蒂安纳·德·博蒙特伯爵举行的一场化装舞会,也就是这位伯爵鼓励了毕加索作品中的"裸露癖与异性装扮癖",他也总是穿着一件又一件由自己设计的引人入胜的两性服装,以设法无礼地对待他的客人。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。