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lakes water
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  湖泊水
     Analysis on Basin Ecological Protection Countermeasure of Lakes Water Pollution Harness
     湖泊水污染治理的流域生态保护对策分析
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     Application of water regulation technique on optimizing urban lakes water environment
     应用水量调节技术优化城市湖泊水环境
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     The conclusion that the main chemical properties of Dalenor northern lakes are strong alkaline and high salt content is drawn through study on water environment of Dalenor lakes situated in the core area of national nature reserve for four years. With the devastation of ecology environment and the increment of lakes water evaporation,lakes water quality will have obvious worse tendency.
     通过对国家级自然保护区的核心区达里诺尔湖水环境 4年的研究 ,得出 :有着典型代表的达里诺尔北方湖泊水环境以含盐量高、碱度大为主要化学特征 ,而且随着生态环境的破坏、湖水蒸发量的逐年增加 ,湖泊水质有明显的恶化趋势
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     Through engineering design of governing water environment of a certain lake in Yangjiang,the author discusses and analyzes the characteristics,methods and attentions of using water regulation technique to optimize urban lakes water environment,in order to solve the pollution problem of lakes with small or medium size.
     通过对阳江市城区某湖泊治理水生态环境的工程设计,讨论和分析了应用水量调节技术优化城市湖泊水环境的特点、方法以及注意问题,以解决中小型湖泊污染问题。
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  “lakes water”译为未确定词的双语例句
     TRADESCANTIA MICRONUCLEI TEST OF MUTAGENS IN SHANDONG NANSIHU LAKES WATER
     南四湖水污染物的诱变性研究——紫露草微核试验法
短句来源
     SITUATION OF LAKES WATER RESOURCES AND MAJOR ENVIRONMENTAL PROBLEMS IN INNER MONGOLIA
     内蒙古湖泊水资源及主要环境问题
短句来源
     Rivers and lakes water's area in this region have gone through several times of expand and decline,water system and watercourses have transformed,following natural background and environment's evolvement.
     该区的河湖环境有着自身特殊的演化背景和演变过程,湖泊几经扩展和退缩、水系河道不断发生迁移和变化。
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     The author analysed the main influencing factors for these,and the variation of the main lakes water body composition with climatic environmentevents.
     境内主要湖区水体组分的动态变化与气候环境事件有一定的关系。
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     Moreover,the microbes demonstrated stimulation to better reoxygention. DO content arised from 1 to 7 mg·L-1. Through analyzing the effects,the conclusion can be drawn that it's feasible for adding microbes into city lakes water to treat europhication water.
     实验结果表明:有利于有机物与叶绿素的去除,其去除率分别达到60%和90%,含氮化合物的去除率达到50%以上,而且投入微生物可使水体DO值由1mg·L-1增加到7mg·L-1,向富营养化的城市湖泊水体投微生物以净化水质的方法是可行的。
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     in water.
     对于水,它约为4 ×10~3大气压.
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     in water. The D.
     经紫外光照射后,颜料在水中的D.
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     Pollution of microcystin in fresh water Lakes
     淡水湖泊中微囊藻毒素的污染
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     Demonstrations of Lakes Water-Supply Technology
     湖泊水给水处理工艺的论证
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  lakes water
Meteorological parameters were analyzed together with physical, chemical, and biological variables in the lakes' water column in order to obtain general descriptors of water-air interactions in the urban environment.
      
Eco-Toxicology: Traditional and Post-Normal Interpretations of the Great Lakes Water Quality Agreement
      
This IJC recommendation was ratified by the 4 signatories of the Great Lakes Water Quality Agreement.
      
These geochemical processes together with the interruption of sand mining in the rainy season and the dilution of sand pit lakes water by rainwater can support the use of these pit lakes as fishpond for aquaculture.
      
EPA's proposed Great Lakes water quality criteria for mercury (Hg), a fieldvalidated Hg cycling model (MCM) was used to predict Hg levels in the abiotic and biotic components of Lake Superior and Lake Erie.
      
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1. An account is given of ten species of copepods collected from four lakes, Ching Hai (Chinghai Province), Tai Hai, Huangchi Hai and Ulasu Hai (Inner Mongolia) with description of three new species, namely, Arctodiaptomus spirulus (p1.Ⅰ, 5-7), Bryocamptus fed (pLs. Ⅳ & Ⅴ), from Ching Hai and Neutrodiaptomus genogibbosus (pL. Ⅱ, 11-14) from Ulasu Hai. A brief description of the larvae of an Argulus (Copepoda Branchiura) from Ulasu Hai is also included (pL. Ⅵ).2. The copepods so far found in Ulasu Hai are...

1. An account is given of ten species of copepods collected from four lakes, Ching Hai (Chinghai Province), Tai Hai, Huangchi Hai and Ulasu Hai (Inner Mongolia) with description of three new species, namely, Arctodiaptomus spirulus (p1.Ⅰ, 5-7), Bryocamptus fed (pLs. Ⅳ & Ⅴ), from Ching Hai and Neutrodiaptomus genogibbosus (pL. Ⅱ, 11-14) from Ulasu Hai. A brief description of the larvae of an Argulus (Copepoda Branchiura) from Ulasu Hai is also included (pL. Ⅵ).2. The copepods so far found in Ulasu Hai are more or less similar to those occurring in the fertile waters of the lower Yangtse Valley. It is, therefore, not surprising that the fish production in this lake is higher than that in the other three lakes.3. The distribution of the diaptomids seems to be related to the properties of the lake water, especially the differences in salinity. Thus, Arctodiaptomus spirulus is found only in Ching Hai; Arctodiaplomus rectispincsus is prevalent in Tai Hai as well as in Huangchi Hai; Ulasu Hai possesses two different diaptomids, Sinodiaptomus sarsi and Neutrodiapiomus genogibbosus.4. The species of Cyclopidae are more adaptive to the various kinds of water, so they have a wider range of distribution. Eucyclops serrulatus can survive in Huangchi Hai and even in Ching Hai, Cyclops vicinus, Cyclops strennus, and Thermocyclops hyalinus are found in Ulasu Hai as well as in Tai Hai and Huangchi Hai. Mesocyclops leuckarti is probably confined to fresh water and it is found only in Ulasu Hai.6. The species of Bryocamptus are generally found in the various kinds of water at high lands or among marshes. They are endurable to low temperature, high alkali and salinity. The new species, Bryocamptus feei, is found only in Ching Hai.6. A short review is made concerning the zoogeographical distribution of these copepods.

(一)这四个湖的桡足类,共采得10种,共中有3种是新发现的种类,如激刺北镖溞、腹突荡镖溞和费氏瘦猛溞,已分别加以叙述。其他各种的性质,略记其要,以利鉴别。 (二)这四个湖在夏季中镖溞的数量远较剑溞的为多,而且按各个湖泊的特殊位 置和水性,各有特殊的镖溞。乌拉素海的桡足类与长江下游水质较肥的湖塘中的种类,很相近似,而且还存在着一种鲺(Argulus sp.)的幼体,而鲺是鱼类的一种敌害。 (三)镖溞的分布与湖水的理化坏境,有密切关系,特别是湖水所含盐类及其浓度,对它们的分布,似有显著的影响。如青海产有激刺北镖溞,岱海与黄旗海都有直刺北镖溞;乌拉素海却有一般淡水湖的镖溞,如萨氏中镖溞和腹突荡镖溞。 (四)这些剑溞的适应力都较强,能在各种湖水中生活。故分布也较广。如锯缘真剑溞是一习见的淡水种类,既见于黄旗海,也能在青海中生活。又如近邻剑溞、英勇剑溞和透明温剑溞除见于乌拉素海外,也能在岱海和黄旗海中生活。只有刘氏中剑溞,大概局限于一般淡水中。这次只发现于乌拉素海中。 (五)瘦猛溞属的一般种类,常生活在地势较高或低洼的水塘中,能耐低温、硷性或盐度较高的水质,故费氏瘦猛溞能在青海中生活。 (六)这些桡足类的属与种的地理分...

(一)这四个湖的桡足类,共采得10种,共中有3种是新发现的种类,如激刺北镖溞、腹突荡镖溞和费氏瘦猛溞,已分别加以叙述。其他各种的性质,略记其要,以利鉴别。 (二)这四个湖在夏季中镖溞的数量远较剑溞的为多,而且按各个湖泊的特殊位 置和水性,各有特殊的镖溞。乌拉素海的桡足类与长江下游水质较肥的湖塘中的种类,很相近似,而且还存在着一种鲺(Argulus sp.)的幼体,而鲺是鱼类的一种敌害。 (三)镖溞的分布与湖水的理化坏境,有密切关系,特别是湖水所含盐类及其浓度,对它们的分布,似有显著的影响。如青海产有激刺北镖溞,岱海与黄旗海都有直刺北镖溞;乌拉素海却有一般淡水湖的镖溞,如萨氏中镖溞和腹突荡镖溞。 (四)这些剑溞的适应力都较强,能在各种湖水中生活。故分布也较广。如锯缘真剑溞是一习见的淡水种类,既见于黄旗海,也能在青海中生活。又如近邻剑溞、英勇剑溞和透明温剑溞除见于乌拉素海外,也能在岱海和黄旗海中生活。只有刘氏中剑溞,大概局限于一般淡水中。这次只发现于乌拉素海中。 (五)瘦猛溞属的一般种类,常生活在地势较高或低洼的水塘中,能耐低温、硷性或盐度较高的水质,故费氏瘦猛溞能在青海中生活。 (六)这些桡足类的属与种的地理分布,根据现有资料,亦略为述及,以明其分布趋势。

1) Due to the aridic climate conditions in the. North-western China, the salt lakes have different water compositions among themselves and different from sea water composition also. 2) Three kinds of processes for extracting magnisium salt from salt lake water are re-commended,(a)the fractional crystallization processes,(b)lime precipitation processes, and (c) ion exchange processes. 3) In practice, the method used to extract magnesium salt from salt lake water varies with the...

1) Due to the aridic climate conditions in the. North-western China, the salt lakes have different water compositions among themselves and different from sea water composition also. 2) Three kinds of processes for extracting magnisium salt from salt lake water are re-commended,(a)the fractional crystallization processes,(b)lime precipitation processes, and (c) ion exchange processes. 3) In practice, the method used to extract magnesium salt from salt lake water varies with the reserve of each salt lake and to the percentage of magnesium. But the ion-exchango processes are preferable, because of simplicity and avability under different circumstances.

1.远古时代西北范围全系大海,陆地出水之后,地面经复杂之变化,遂使盐湖具有差别悬殊之多样性,湖水之成分互不相同,与海水亦有异。 2.自盐湖水提取镁盐之方法,有三类,(1)分级结晶法类,(2)石灰沈降法类,(3)离子交换法类。 3.自盐湖提取镁盐之详细步骤,因湖水含镁量之多少,及盐湖贮量之大小而不同,但以离子交换法为最合用,因其简单便利能适应不同之情况。

The present paper proposes some aspects and procedures for establishing the long-term predictive equation of locust population fluctuations. Three kinds of predictive po-pulation models are introduced and discussed with respect to their practical value. Aseries of locust population data of 50 years, 1913--1962, taken from Hung-Tze Lake, a typical locust region, has been used to analyse the regularity of locust population dyna-mics, from which the effective factors have been selected to build up the predictivemodels....

The present paper proposes some aspects and procedures for establishing the long-term predictive equation of locust population fluctuations. Three kinds of predictive po-pulation models are introduced and discussed with respect to their practical value. Aseries of locust population data of 50 years, 1913--1962, taken from Hung-Tze Lake, a typical locust region, has been used to analyse the regularity of locust population dyna-mics, from which the effective factors have been selected to build up the predictivemodels. 1. Analysis of Outbreak Regularity 1) The running equation, E=(k--2npq)/(npq(1--3pq)~(1/2)) is employed to test the indepen-dence on outbreaks of one another. It is found that some connections are present be-tween two neighbouring outbreaks. This means that each outbreak would be consideredas a continuous part of the population fluctuation sequence which is influenced by theresultant effect of both locust bionomics and environmental factors. 2) Results obtained about the influence of climatic factors, by the analyticalmethods of contingence table and conditional probability, show that a dry climatic year ismore suitable to the locust population growth than wet years, and a dry summer is par-ticularly favorable as compared with spring. Such climatic condition may be expressed bythe climatic index shown as follows: Precipitation saturation deficit<3 andlake water leveland the mortality of overwintering eggs for the summer generation, the flooding area oflower lands and lake water level for the fall generation. 3) In analyses made on periodicity of locust population dynamics, three periodicintervals are evident, and these are 2--3 years, 5--6 years and approximately 25 years.In addition, with the aid of the analysis of integral curve method, a periodicity of 25-year has also been revealed, and it is proved in accordance with the periodicity of drymonths from May to August. 4) The influence of crowding is another biological factor which has to be con-sidered in locust population fluctuation as exhibited by diminution of ovariole number andthe amount of eggs. The interrelationship between them has been calculated based on aseries experiments by using the transcendental equation which gives a well fit. 2. Prediction equations The predictive models are established by the following three methods: 1. By direct extrapolation method on the basis of 1) the analysis of population dynamics of the fluctuation form: First is to analysethe 50-year data by using the method of transition probability matrix of Markov Chain,then it gives two matrices in which we may find the higher transition probabilities oc-curing among the series of population abundances as follows: 2→3, 4→3, or 4→7,→8. 2) the characteristics of population fluctuation sequence: It is indicated that if thevalue of population abundance deviating from the mean level (y = 4.141) is plusor minus 2, the fluctuation tendency will reverse, for example, when x_ix_(i+1)>x_(i+2) then x_(i+3)>x_(i+2), generally x_(i+3)<4.1. 2. By the methods of random sequence and periodical equations based on environ-mental factors and population bionomics: the followng model is used y_t=f(t)+ξ(t)+g(t)(y(t)…predicted value of population abundance, f(t)…tendency factor, ξ(t)…random factor, g(t)…periodical factor) The estimation of these three factors dissolved are f~*(t)=4.475--0.0084t+0.38 sin (π/(12)t) ξ~*(t)=--0.1186ξ(t--1)--0.1452ξ(t--2) g~*(t)=g_7(t)+g_8(t)+…+g_(12)(t) 3. By stepwise multiple regression method: Equations are established based onnumerous variates, many of which have been sifted under given confidence levels (F=1.5,2.5) before they are taken in the predictive models. 1) Linear regression equa

本文以洪泽湖蝗区为例,分析了东亚飞蝗中长期数量预测方程的建立基础,提出三种预测方法:(一)根据种群动态型趋势进行外推估值,(二)应用随机序列及周期方程的预测法,(三)多因素过滤回归预测法,此三种方法虽各有其独立的预测模式,但在应用时应将其视为总预测式中的三个相互补充的部分。

 
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