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科学研究者
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  “科学研究者”译为未确定词的双语例句
     Enough and high quality DNA is the focus of researchers.
     大量、高质量的 DNA提取一直是大豆科学研究者探讨的问题。
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     Agricultural Bioinformatics Databases is the basic tool for agricultural science researchers,with the help of the data in these databases,it is easier to improve and protect the agricultural organism.
     农业生物信息数据库是农业科学研究者的基础工具,利用数据库中的大量信息,便于进行农业生物的改良与保护。
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     With the development of molecular biology and culturing of cells, the use of transgenic plants as vectors for the expression of viral and bacterial antigens has been increasingly tested as an alternative methodology for the production of experimental vaccines.
     随着分子生物学技术的高速发展和植物细胞培养及再生方法的完善,有研究表明,将细菌性和病毒性病原体抗原的编码基因导入植物细胞,能够表达出较好保留天然免疫原性的抗原,因此科学研究者们尝试将转基因植物转变为人类所需昂贵药品的廉价的“生产工厂”。
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     In the process of meteorology study, the framework of the theory is standard and the method the researcher used is strict and steady. Furthermore, the description and the explanation in the meteorology study accorded with the scientific criterion.
     从气象学研究来看,20世纪30年代中国的科学研究者们在研究中,所运用的理论具有一定的组织方式,这些研究有一套严格的方法和稳定的程序,研究中的描述与说明也完全符合科学的规范,说明此时中国已经建立了常规科学。
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     Coupled with the economic growth and urbanization course, air environmental pollution in urban area is becoming much more serious.
     随着社会经济持续增长和进一步城市化发展,中国要深入贯彻可持续发展战略政策,污染问题尤其是城市大气环境污染已经是摆在环境科学研究者面前急待解决的问题。
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     The developed coun-tries are the main international cooperation partners.
     研究者的国际合作伙伴主要是西方科学发达国家。
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     Thus,the pollution problem caused by nitrobenzenes is drawing more and more concerns from scientific researchers.
     因此,硝基苯环境污染问题越来越受到科学研究者的关注。
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     Teacheres as Researcher
     教师成为研究者
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Based on the theory of holographic interference and the variable property of the

本文根据全息干涉原理,利用波动造成水媒质内部光折射率变化的特性,在同一张底片上重复地拍摄了波动前后两个时刻的两幅全息图。这两幅全息图被叠加在一起,就构成了一张全息干涉图的底片。把这张底片用激光照射就可得到水中波动的波阵面的再现象,从而解决了从事水声探测和水声成象的科学研究者的难题,即能够使他们亲眼看到瞬息变化的各种水中波动的波阵面。而其频率范围可从次声波到超声波。在本文的实验中应用脉冲红宝石激光器拍摄了水中超声波在前进、反射及绕射时的景象。

This paper deals with the research and development in the fundamental theories of environmental science in China over the past two decades,covering the main theoretical grounds of atmospheric environmental science, aquatic environmental science, environmental ecology, and environmental management science. Environmental science in China has developed rapidly for the last 20 years. The studies on the transportation and diffusion of pollutants in the atmospheric and aquatic environments , based on the basic theories...

This paper deals with the research and development in the fundamental theories of environmental science in China over the past two decades,covering the main theoretical grounds of atmospheric environmental science, aquatic environmental science, environmental ecology, and environmental management science. Environmental science in China has developed rapidly for the last 20 years. The studies on the transportation and diffusion of pollutants in the atmospheric and aquatic environments , based on the basic theories of environmental hydromechanics, are comparable to those in the world. Many basic conclusions,such as those on the conditions and mechanisms of forming photochemical smog and acid rain in the field of atmospheric environmental chemistry and those on the spe-ciation of heavy metals and the mechanism of nitrogen and phosphorus transformation in the field of aquatic environmental science, have been achieved. But there remains an obvious gap as compared to those international studies in these two fields, especially the study on the basic thories of pollution organic chemistry which is still quite weak in China. Many research efforts have been made for environmental ecology on which a large number of data have been accumulated while further efforts should be directedto to some major ecological and environmental issues, such as the mechanisms on eutrophication and red tide formation. The greatest achievements have been seen in the environmental management science on which a China-specific research way in the light of the management practice in China was accepted by the 1992 United Nations Conference on Environment and Development (UNCED) in Brazil. Many new environmental problems wich will emerge due to the varied physical environment and rapidly-developing economy in China will wait for the Chinese environmental scientists to study their causes and pollution control.

主要介绍20年来中国环境科学基本理论研究及其发展。即大气和水环境科学与环境生态学和环境管理学主要理论研究及其发展。20年来中国环境科学发展甚为迅速,根据环境流体力学基本理论,研究污染物在大气和水环境中迁移扩散规律,与国际上同类研究并驾齐驱。大气环境化学研究中,对光化学烟雾和酸雨形成条件和机理;水环境化学中,对重金属形态转化和氮、磷转化规律取得许多基本结论。与国外同类研究尚有一定差距。特别污染有机化学基本理论研究甚为薄弱。环境生态学20年来做了大量研究工作,积累了许多资料,对一些巨大环境生态问题,如富营养化作用、赤潮等问题形成机理尚待突破。环境管理学成就最大,从实践中已探索出中国环境管理学研究的道路。已为1992年在巴西召开的“联合国环境与发展会议”所肯定。中国自然环境复杂,经济迅速在发展,会出现许多新的环境问题,其形成规律和防治途经有待全国环境科学研究者研究。

Holdridge's Life zone classification system is highly evaluated by international circles of ecolgy and environmental sciences owing to its simple and convenient for calculation and better correspondence with vegetation types. Recently it has been especially applied to assess environment, engage in ecological regionalization, predict the impact of global change upon ecosystems, etc. The result of analysis of climatological date for vegetation zones in China by means of Holdridge's system also shows a significant...

Holdridge's Life zone classification system is highly evaluated by international circles of ecolgy and environmental sciences owing to its simple and convenient for calculation and better correspondence with vegetation types. Recently it has been especially applied to assess environment, engage in ecological regionalization, predict the impact of global change upon ecosystems, etc. The result of analysis of climatological date for vegetation zones in China by means of Holdridge's system also shows a significant correspondence.But, because it was developed in the tropical zone of Central America, an adjustment in China's subtropical zone is needed. Nevertheless, the application of that system should be beneficiate for unification and comparative study of the climate-vegetation interaction in the world. The regression analysis shows a significant correlation between Holdridge's potential evapotranspiration rate (PER) and radiative dryness index (RDI) of Chikugo Model. Therefore, PER could be used to estimate Net Primary Productivity (NPP).Its result of calculation for vegetation zones in China is satisfied and could be used to predict the change in vegetation zones, main types of ecosystems, and NPP in China.

Holdridge的生命地带分类系统由于其指标的计算十分简便与对植被的对应性强而受到国际植被生态学界与环境科学研究者的重视。特别是近年来在环境的评价、生态区划与预测全球变化对生态系统的影响等方面得到较多采用。该系统对中国各植被地带的气候台站资料进行计算分析的结果表明有较好的适应性。但由于该系统发展于中美洲的热带地区,因而在中国的亚热带地区须进行局部的调整。但采用该系统将有利于与世界各地的气候一植被分类系统的统一与对比研究。通过回归计算表明,该系统的可能蒸散率(PER)指标与CHIKUGO模型的辐射干燥度(RDI)显著相关。因而可以采用便于取得资料与易于计算的PER来进行潜在第一性生产力(NPP)的估算。对中国各植被地带的计算结果令人满意,可进一步用于在全球变化条件下,中国各植被地带或生态系统主要类型及其NPP变化的预测。

 
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