级别

Nutrition solution culture, ICP-AES, the differential centrifugation technique and sequential chemical extraction method, suppression subtractive hybridization , RAPD were used in this thesis to study the mechanisms of copper tolerance and accumulation by Commelina communis grown in copper mine deposit which was reported to be a Cu hyperaccumulator, compared with C. communis grown in normal soil. Several aspects were examined, including: difference of copper tolerance and accumulation between C. communis grown in copper mine deposit and that grown in normal soil; difference of growth and nutrient accumunation between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; physiological differences between between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; subcellular distribution and chemical forms of Cu in C. communis; identification of cDNA fragments differentially expressed in C. communis grown in copper mine deposit; genetic diversity and copper tolerance of C. communis, tolerance mechanisms to copper in C. communis are discussed.

中文题名鸭跖草对铜的耐性机理和富集特征研究副题名外文题名 Mechanisms of Cu tolerance and accumulation by Commelina communis 论文作者廖斌导师蓝崇钰束文圣学科专业环境科学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数128页关键词重金属污染植物修复超富集植物土壤污染铜污染鸭跖草馆藏号BSLW /2003 /X53 /12 论文以本实验室报道的生长于矿山上的铜超富集植物鸭跖草和生长于正常土壤中的鸭跖草为试验材料，分别运用溶液培养法、ICP-AES元素测定技术、差速离心法和化学试剂逐步提取法、抑制消减杂交技术、RAPD技术研究了矿山和非矿山两种生境鸭跖草对铜的耐性和吸收积累的差异，两种生境鸭跖草在铜胁迫下养分吸收和积累的差异，两种生境鸭跖草在铜胁迫下生理反应的差异，以及铜在鸭跖草细胞内的分布及结合形态研究，矿山鸭跖草差异表达的cDNA克隆，铜对鸭跖草种群遗传分化的影响，从这几个方面探讨了矿山鸭跖草对铜的耐性机理。

LI KE QIANG, THE VICE PRESIDENT OF CHINA STATE CONCILE SAID THAT THE CHINESE GOVERNMENT WILL KEEP THE STABILITY OF FINANCE AND TAX POLICY AND ALSO CONTROL BOTH THE FREQUENCY AND RANGE OF ADJUSTMENT.

第三届ITD全球大会由中国财政部承办，是中国迄今为止举办的级别最高、规模最大、影响最广的国际税收对话与交流合作会议。。。

Video server sends a RSVP message to reserve resource for client, and the system calculates and analyses QoS parameters using control information of RTP/RTCP packets and ICMP Echo request message, and controls the transmission grade by corresponding strategy to ensure network QoS, which enhances the system reaction to network condition and stabilizes the throughput and solves the problems of data transmission and using bandwidth fairly between multicast data and other kind of data when network is congestible and unstable.

整个模型系统主要由视频服务器、路由节点和客户端构成，通过RSVP协议进行资源预留协商，并在传输过程中利用RTP/RTCP包中携带的控制信息结合ICMP Echo请求报文提取QoS参数，对其进行分析判断，采用相应策略对传输级别进行实时控制，保障了网络QoS，提高了系统对网络状况的反应速度，降低了传输速率的波动性，较好解决了网络拥塞和不稳定时数据的有效传输以及与其他数据流公平占用带宽的问题。

The social level structure is defined from its basic conception, in-depth meaning and characteristics. The term refers to a functional being and social reality, a unity of physical space and value space as well as connectional and theoretical existence. Viewed from the perspective of political philosophy, the social level structure is a political sovereignty grading or ladder in a state who values the supremacy of sovereignty, penetrating into economic, cultural and social fields, universally forming social relationship. Based on general social structure, social system and political sovereignty, the social level structure is an abstractly summary of social hierarchy which is neither a copy of political structure nor simply addition of economic, cultural and social structure. The social level structure is long hidden but universally existing, deeply affecting and shaping social system, people's life and thinking. Based on the above, the thesis probes the social foundation, evolutional law, fundamental quality, running mechanism, historical function, current significant and the reform necessity.

从社会层级结构概念的基本规定、深层意蕴和性状表现三个方面界定社会层级结构概念，认为社会层级结构既是一种实体性存在和社会现实，也是一种观念性存在和理论构造，是物理空间和意义空间的统一；从政治哲学视野，社会层级结构是在政治国家内部按照权力至上的方式形成的权力级别或权力阶梯，并渗透到经济、文化、社会领域，形成具有普遍性的社会关系体系；它以总体社会结构为依托，以社会制度为外化，以政治权力为中轴；它既不是政治结构的翻版，不是社会阶层结构的别名，也不是经济、文化、社会结构的简单叠加，而是对它们层级性的一种抽象和概括；这种结构长期隐而不显，但却无处不在、无时不有，深深地影响和牢牢地控制着社会制度、人的生活和人的思维方式。

"Ron is understandably intimidated by him because Cormac is in a physical class that Ron will never be," says Heyman.

&可以理解，他使罗恩备感压力，因为考麦克在身体条件上处于罗恩永远也达不到的一个级别，&制片人大卫·海曼说。

On March 8th, 2003, the WBO king was dethroned by a foreign intruder named Corrie Sanders who brutally floored him three times in just two rounds and smashed his dignity of being a king.

他一路过关斩将，最终为自己的祖国献上了一枚沉甸甸的金牌，并成为了36年来第一个在超重量级这个级别夺得奥运会冠军的白人拳手。

I would characterize this as low grade DCIS, solid and cribriform growth patterns.

我认为是低级别DCIS，实体性和筛状生长构型。

Phycobiliprotein are important light-harvesting pigment proteins in Cyanophyceae, Rhodophyceae, Cryptophyceae and a little Pyrrophyceae.

中文题名极大螺旋藻藻蓝蛋白基因的克隆及其表达研究副题名外文题名 Cloning and sequencing of the phycocyanin gene from Spirulina maxima and its over-expression in Pichia pastoris 论文作者于平导师岑沛霖学科专业生物化工研究领域\研究方向学位级别博士学位授予单位浙江大学学位授予日期2003 论文页码总数110页关键词藻胆蛋白基因克隆藻蓝蛋白基因螺旋藻馆藏号BSLW /2003 /Q949 /32 藻胆蛋白是蓝藻、红藻、隐藻和一些少数甲藻中的一种重要的捕光色素蛋白。

And they'll learn more. Both of these grading schemes are defendable, but you should tell your students which one you use.

就会加深。这两个级别计划是情有可原，但你应该告诉你，你用哪一个学生。

Form may not be the exclusive aim of landscape design, but without the form, neither the current functional request nor the ultimate objective of apperception and assistance of the demiurgeous power can be realized.

中文题名景观形式的生成与系统副题名外文题名 Genesis and system of landscape form 论文作者董璁导师白日新教授学科专业风景园林规划与设计研究领域\研究方向景观形式研究学位级别博士学位授予单位北京林业大学学位授予日期2001 论文页码总数276页关键词景观设计园林规划馆藏号BSLW /2003 /TU986 /3 景观设计归根到底是要获得一个&形式&，这也许不是目的，但不管是眼前的功利要求，还是所谓&参天地赞化育&的终极目标，才能籍此得以实现。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。