查询词典 mineral chemistry

The method combines environmental chemistry, analytical chemistry, mathematics, statistics and computer science to study speciation.

该方法结合环境化学、分析化学、数学、统计学和计算机科学等知识交叉研究形态分布。

The stereochemistry and reaction mechanism of the reduction with NADH mimics have been of great interest in the field of physical organic chemistry and biological chemistry.

手性辅酶NADH模型物还原反应机理研究，一直是物理有机化学和生物化学中令人感兴趣的课题。

Laser Raman spectral technique is an important section in modern laser spectral techniques. Laser Raman spectrum plays an important role on the aspects of analyzing molecular structure, symmetry properties of crystal, investigating solid structure phase-variation and the structure of IR spectrum of molecule. In recent years,it has been extensively applied in many research fields such as organic and inorganic analytical chemistry, biochemistry, petrochemical industry, macromolecule chemistry ,etc.

激光喇曼光谱技术是现代激光光谱技术中的一个重要组成部分，激光喇曼光谱对于确定分子结构和晶体的对称性、研究各种固体结构相变及红外光谱结构分析等方面具有重要作用，近些年来已经广泛地应用于有机和无机分析化学、生物化学、石油化工、高分子化学等领域。

Key Laboratory of Computer Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.Shanghai(200032)Abstract : The most usual problems encountered in the structure handling are tautomerism, alternating and aromatic systems. Though a number of methods have been reported in the literature, a common disadvantage is that only the convenience for processing were taken into account, but their chemical sense was rarely considered.

化学结构计算机处理中最常遇到的困难是互变现象、交替键和芳香键的处理，尽管解决这些问题的方法早有报道，但它们都有仅考虑计算机处理的方便，而很少注意其化学应用的不足。

The other important work in this thesis is adding stratospheric chemistry reactions in regional chemistry model RADM in order to study STE effects on ozone near the tropopause.

本文的另外一个重要工作是，在区域酸沉降模式RADM中加入平流层化学模块，以研究STE对对流层顶附近臭氧浓度的影响。

From view of wood construction effecting, the article analyzes affecting factors of wood main micro-constructions such as tylosis and bored pits in processing of wood chemistry soaking with fire retardants, the article also analyzes existing condition of moisture in wood and relationship between moisture moving in wood and wood chemistry soaking technology treated with fire retardants.

从木材构造对化学阻燃浸渍处理工艺影响的角度，指出在木材化学阻燃浸渍处理过程中，影响阻燃剂在木材中渗透性的木材主要微观构造有浸提物、纹孔等，分析了木材中水分的存在状态和木材中水分的移动与木材化学阻燃浸渍处理工艺的关系。

Beginning with the investigation of the mathematics studying of the freshmen the author de signed a questionnaire, and found that the adaptability level of the freshmen's chemistry learning is not high enough, and that the majority of freshmen are unadaptable to their chemistry teacher's teaching method in universities.

本文从非化学专业大学新生学习化学的实际情况调查入手，通过自编的调查问卷，深入分析发现大学新生化学学习的总体适应性水平不高，在面对突如其来的学习内容差异和环境的转换，学生很难体会到化学教学的魅力，难以形成专业自豪感和学习的兴趣，普遍不适应大学化学教师的教学方式。

We hope this study can provide a model to help transform the underachiever middle school students in chemistry. On the other hand, we also hope try our best to reduce the produce of the underachiever middle school students in chemistry.

作者的工作为尽量减少中学化学学业不良学生产生的可能以及实现中学化学学业不良学生的转化提供了可资借鉴的思路和案例。

Essentially all phenomena in chemistry find explanations in the quantum atom, while chemistry and physics undergird molecular biology, which, since the discovery of DNA in the 1950s, dominates modern biology.

从本质上讲所有的化学现象都可以在量子原子中找到答案。而自二十世纪五十年代发现DNA以来一直占据现代生物学主导地位的分子生物学，在背后支撑它的是化学和物理学。

WQA-AQUATECH is the water industry with the the biggest, most essential North America is exhibited meeting, exhibit in global water industry very high status is enjoyed in the meeting, because this attracted chemistry of American contented family name, Japan times of chemistry of Xiong Jin of Dong Li, Korea, Beijing Woduke ability limited company (the following abbreviation: Times Warton) wait for international business of famous film industry comes round to join exhibit.

WQA-AQUATECH是北美最大、最重要的水行业展会，在全球水行业展会中享有很高的地位，因此吸引了美国陶氏化学、日本中国水网消息，2009年3月18日至20日，由美国水质协会和荷兰阿姆斯特丹的RAI集团共同主办的WQA-AQUATECH展会在美国芝加哥隆重举行。

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。