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    Study of the Main Eco-Environmental Issues and Countermeasures in the City of Jinan,China
    济南市的主要生态与环境问题及对策研究
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    Study on the Distribution and Characteristics of Main Heavy Metals and Organic Pollutants of Jiaozhou Bay
    胶州湾主要重金属和有机污染物的分布及特征研究
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    THE RELATIONSHIP OF TWO MAIN PROCESS ON METAL/SAL.WATER
    金属/海水界面两个主要过程的关系
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    BACKGROUND VALUES OF SOME ELEMENTS OF MAIN AGRICULTURAL SOIL TYPES AND CROPS IN BEIJING
    北京主要农业土壤和粮食作物中若干元素的背景值研究
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    THE RELATIONSHIP BETWEEN THE MAIN RIVER SYSTEMS IN THE NORTHERN AREA OF HENAN PROVINCE AND THE INFLUENCE BY MAN'S TRANSFORMATION OF
    历史时期豫北地区主要水系之间的关系及人类改造利用的影响
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    ON THE DESERTIFICATION IN AGRICULTURAL ZONE IN GUJUYAN
    试论古居延农业区沙漠化的主要原因
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    Experiences in the World Environmental Management
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    The evaluation for Sichuan radioactive level of staplefood and drinking water and the inner exposure dose of the inhabitants
    四川省主要食品和饮水放射性水平及所致居民内照射剂量的评价
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    INVESTIGATION OF VARIATION LAW OF ATMOSPHERIC POLLUTANT CONCENTRATION IN YU-LIN CITY
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    ADSORPTION OF COBALT ON SOILS OF CHINA
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The main idea for our approach relies on a study of the boundary theory we established for the general CAT(-1) spaces.
      
We prove as the main result thatM is weakly symmetric with respect toG1 and complex conjugation.
      
As an immediate application we obtain a new proof of the main theorem of standard monomial theory for classical groups.
      
As our main result, we prove that every coherentK-sheaf onX extends uniquely to a holomorphicG-sheaf onXc.
      
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A project for studying the seasonal variation of the planktonic organisms in the near-shore water of Tsingtao was started in March of 1953. Both quali- tative and quantitative samples have been collected since then at weekly inter- vals as regularly as possible. The present paper is a preliminary report of the results obtained for the first three years (March 1953 to February 1956). Spe- cial attention was paid to the seasonal variation in composition and number of planktonic diatoms. It was found that the...

A project for studying the seasonal variation of the planktonic organisms in the near-shore water of Tsingtao was started in March of 1953. Both quali- tative and quantitative samples have been collected since then at weekly inter- vals as regularly as possible. The present paper is a preliminary report of the results obtained for the first three years (March 1953 to February 1956). Spe- cial attention was paid to the seasonal variation in composition and number of planktonic diatoms. It was found that the most dominant species of the planktonic diatoms in our collections belong to the genera Rhizosolenia, Coscinodiscus, Thalassionema, Leptocylindrus, Chaetoceros, Skeletonema, Melosira, Eueampia, Asterionella, Nitzschia, Thalassiothrix, Ceratulina and Thalassiosira. The monthly occurrence of the different species was noted and compared with that reported for Amoy by professor Chin (1955) . Enumerartion of the diatoms in the quantatitive samples was made and the results were presented in tables and graphs, showing that the average number of cells was highest in September and lowest in April and May. Seasonal variation of environmental conditions was reviewed and correlated to the seasonal variation the planktonic diatoms. A new method for the study of seasonal variation of planktonic diatoms was suggested, emphasizing the physiological stats of different diatoms at the time of collection and their adaptive response to the environmental conditions. The result of a few experiments reported in the present paper showed that the new mgthod deserves further attention.

本文系作者根据1953年3月至1956年9月在青岛所采的海洋浮游生物的定性和定量标本而作的青岛近海浮游矽藻季节变化的初步报告。全文包括四个主要内容。第一部分为青岛海洋浮游矽藻种类记录补遗。一共列出青岛以前未有报告的种或变种共23个,其中有七个为我国沿海首次记录。第二部分为青岛各月近海浮游矽藻的主要组成。文中首先指出,青岛近海浮游矽藻中,以个体数目来看,最多有Rhizosolenia,Coscinodiscus,Thalassionema,Leptocylin-drus,Chaetoceros,Skeletonema,Melosira,Eucampia,Asterionella,Nitzschia,Thalassiothrix,Ceratulina,Thalassiosira等属。其次将各属矽藻的主要种类和出现月份加以敍述,最後并与厦门港的海洋矽藻组成做了比较。第三部分为青岛近海浮游矽藻数量的季节变化。结果示明,青岛近海浮游矽藻数以9月最多,4、5月最少。6、7月数量上升,8月稍挫,9月高峰後,显著下降。12月至2月间有一次增加。文中并将青岛一般海洋环境的季节变化和食植浮游动...

本文系作者根据1953年3月至1956年9月在青岛所采的海洋浮游生物的定性和定量标本而作的青岛近海浮游矽藻季节变化的初步报告。全文包括四个主要内容。第一部分为青岛海洋浮游矽藻种类记录补遗。一共列出青岛以前未有报告的种或变种共23个,其中有七个为我国沿海首次记录。第二部分为青岛各月近海浮游矽藻的主要组成。文中首先指出,青岛近海浮游矽藻中,以个体数目来看,最多有Rhizosolenia,Coscinodiscus,Thalassionema,Leptocylin-drus,Chaetoceros,Skeletonema,Melosira,Eucampia,Asterionella,Nitzschia,Thalassiothrix,Ceratulina,Thalassiosira等属。其次将各属矽藻的主要种类和出现月份加以敍述,最後并与厦门港的海洋矽藻组成做了比较。第三部分为青岛近海浮游矽藻数量的季节变化。结果示明,青岛近海浮游矽藻数以9月最多,4、5月最少。6、7月数量上升,8月稍挫,9月高峰後,显著下降。12月至2月间有一次增加。文中并将青岛一般海洋环境的季节变化和食植浮游动物及双鞭毛虫的数量变化做了分析和对照,又将青岛和厦门港两地海洋浮游矽藻数量变化做了比较。第四部分为矽藻数量季节变化研究方法的一个新建议。文中略述了矽藻数量季节双化研究中的主要问题,并建议加强关於矽藻对於生活条件改变的适应回答的研究,以期能更好地揭露矽藻数量变动的规律。最後,文中介绍了作者所进行的测定矽藻质量的实验初步的结果。

The basic oxygen steel-making process is another important technical revolution following the Bessemer process and the Thomas process. It is now playing a vital part in the steel industry in countries like West European countries, Japan, etc. After taking stock of the present steel production and modern development in several leading countries and after comparing various kinds of oxygen steel-making processes, the author points out that the basic oxygen steel-making process is the main trend in steel production...

The basic oxygen steel-making process is another important technical revolution following the Bessemer process and the Thomas process. It is now playing a vital part in the steel industry in countries like West European countries, Japan, etc. After taking stock of the present steel production and modern development in several leading countries and after comparing various kinds of oxygen steel-making processes, the author points out that the basic oxygen steel-making process is the main trend in steel production from now on. In his thesis, the author compares by illustrations the basic oxygen process and the open-hearth process in the following respectsthe methods of operation, the suitability of raw materials, the total yield, production costs, and the investments in basic construction. He also points out with emphasis that the basic oxygen process surpasses the open-hearth process in the kinds of products and their quality. He takes into considerations of the resources and the conditions of production of our country, and gives his personal opinion at the end of his thesis: The question of making immediate use of oxygen is on the programme today. The rapid development of oxygen steel-making should become one of the significant measures to push forward the production of the whole industry.

碱性氧气轉炉炼鋼法是继貝士麦炼鋼法和托馬斯炼鋼法之后又一次重要的技术革命,已經在若干国家如西欧国家、日本等炼鋼工业中起着巨大的作用。作者从世界上几个主要产鋼国家现时生产和发展的形势,在比較了不同类型的氧气炼鋼方法后指出:碱性氧气轉炉冶炼是今后炼鋼的一个主要发展方向。文中作者用实例就碱性氧气轉炉的操作方法、原料的适应性、金属收得率、产品成本以及基建投资等方面与平炉作了对比,并着重指出:碱性氧气轉炉鋼在品种和质量方面与平炉鋼相比較,实有过之而无不及。作者結合我国资源和生产情况,在文末提出个人意見,认为:氧气在我国冶金工业中的加速使用已經提到日程上来。加速发展氧气炼鋼应成为进一步推动整个工业生产的重大措施之一。

~~

岱海是一个位于内蒙西南部的内陆盆地,天然水的矿化度和化学类型自盆地边緣的山地到盆地中部的湖区作有規律的变化自山地到岱海湖滨:河水矿化度由250毫克/升,上升到500毫克/升。化学类型由C_Ⅰ~(Ca)或C_Ⅱ~(Ca)轉变为C_Ⅰ~(Na)或C_Ⅱ~(Na);地下水矿化度自250毫克/升增加到1500毫克/升以上,化学类型由C_Ⅰ~(Ca)或C_Ⅱ~(Ca)轉变为C_Ⅰ~(Na)或C_Ⅱ~(Na)+S_Ⅱ~(Na)+Cl_Ⅱ~(Na)。岱海湖水矿化度均在2000毫克/升以上,化学类型主要为Cl_Ⅲ~(Na).及Cl_Ⅱ~(Na)。由此可知,天然水自盆地边緣的山区向盆地中部的湖区的汇集过程,不仅是水量和水能的消耗过程,也是水質的变坏过程。所以全部河水及絕大部分的地下水都可以作为良好的农业用水,灌溉系数在18以上,滨湖低地地下水的質量稍差,灌溉系数在6—18之間、岱海湖水的灌溉系数在1.2—6之間,已不宜于灌溉,但以近年来处于淡化阶段,对发展养殖业尚无大碍。唯在历史上,其水量、矿化度、化学組成均曾有很大的波动,这可能是岱海过去沒有魚类生长的一个重要原因。

 
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