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major source     
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     Fossil energy consumption is the major source of footprint which is 1.63 hm~2/cap at the provincial level,taking up 67.3% of the total.
     化石能源消费是生态负荷的主要来源,全省该项足迹为1·63hm2/cap,占总足迹的67·3%;
短句来源
     and (3) The TGF-β1 secretion levels induced by PHA-P, progesterone and in γδ+T cell control were each obviously higher than those of TGF-β2 in same conditions, indicating that γδ+T lymphocytes of early-pregnant goat were the major source of TGF-β1 at maternal-fetal interface.
     (3)PHA-P处理、孕酮处理及γδ+T细胞对照的TGF-β1分泌水平均明显高于TGF-β2,证明γδ+T细胞是妊娠早期山羊母-胎界面TGF-β1的主要来源
短句来源
     The ratio of biomass 12C to biomass 14C varied from 0.74 to 3.85, which indicated that under most situations, native soil C was still the major source of energy and nutrients for microorganisms.
     微生物量12 C约为微生物量14 C的 0 74~ 3 85倍 ,说明大多数情况下 ,土壤原有C仍是土壤微生物活动所需能量和养分的主要来源
短句来源
     Conclusion Breast milk is the major source of CMV infection acquired by infant.
     结论 母乳是婴儿获得CMV感染的主要来源
短句来源
     The activation and proliferation of HSCs, which are the major source of ECM, are the crucial event to liver fibrosis.
     HSCs是产生ECM的主要来源,HSCs的活化和增殖是肝纤维化发生的关键。
短句来源
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  重要来源
     Comparison analysis of Pb with Br and Se shows that coal burning is probably another major source of Pb in PM 2.5 other than vehicle emission.
     与Br、Se的比较分析表明 ,燃煤可能是Pb除机动车排放之外的另一个重要来源 .
短句来源
     The municipal domestic sewage is a major source of the surface water pollution, which makes up 70.5% of the total sewage in Fuzhou.
     福州市市区生活污水占总污水量的70.5%,是福州市地表水污染的重要来源
短句来源
     It was demonstrated that coal combustion is the only major source to the PAHs in the rural area,while vehicle emission as well as other industrial activities add more PAHs to the other two area in addition to input from coal combustion.
     根据不同化合物的含量关系及天津地区燃料消耗资料可以判定,南北低值区土壤中PAHs基本来自燃煤排放,而两个高值区污染来源复杂,除燃煤仍是主要来源外,其他重要来源还包括燃油和其他工业活动。
短句来源
     In China, English teacher talk is not only the tool for teachers to carry out the teaching schedule, but also the major source of learners’ English language input.
     在中国,英语教师话语不仅是教师执行教学计划的工具,同时还是学习者语言输入的一个重要来源
短句来源
     Land tax not only is the important content of local tax system and the major source of local revenue,but also plays an important role in adjusting land resources allocation,promoting land resources rational transference,protecting cultivated land resources and reducing the waste of land resources under the market economy.
     土地税收不仅是地方税体系的重要内容,是地方财政收入的重要来源,同时也是市场经济条件下调节土地资源配置,促进土地资源的合理流动,保护耕地资源,减少土地资源的浪费等方面发挥重要作用。
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     Organic facies of major source rocks in Baiju sag of Subei basin are classified using theory and analysis method on organic facies.
     应用有机相理论和分析方法,划分苏北盆地白驹凹陷主要烃源岩的有机相;
短句来源
     The major source rocks (Chijinpu Formation and lower part of Xiagou Formation, Lower Cretaceous) reached a peak of petroleum generation during the late Neogene Quaternary, that were controlled by tectonic and buried history in the Qingxi depression, and that are still in a maturity high maturity stage now, during which oil is mainly generated and oil pools are mainly formed.
     青西坳陷的构造埋藏史控制了主要烃源岩(下白垩统赤金堡组和下沟组下部 )在晚第三纪晚期—第四纪才达到生油高峰期 ,目前仍处于成熟—高成熟阶段 ,因此以生油为主 ,主要形成油藏。
短句来源
     There are a major source rock in coal measures of Eocene Pinghu Formation and a minor source rock in Oligocene and Miocene coal measures in the eastern depression belt.
     东部坳陷带以始新统平湖组煤系地层为主要烃源岩,渐新统和中新统煤系地层为次要烃源岩。
短句来源
     The Triassic and Jurassic source rocks (including the Carboniferous Permian source rocks in some regions) are major source rocks in the foreland basins of central western China, whose formations are controlled by depressions or faulted sags developed in the early stage of the foreland basins and warm humid climate.
     受中生代前陆盆地早期阶段坳陷或断陷发育及温暖潮湿气候控制 ,主要烃源岩是三叠系—侏罗系 (部分包括石炭 二叠系 )烃源岩。
短句来源
     In the central uplift belt,Upper Triassic-Middle Jurassic Fuzhou Formation provides major source rocks.
     中央隆起带以上三叠统—中侏罗统福州组为主要烃源岩;
短句来源
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  重点源
     Analysis and Suggestions on Major Source Boiler's Examination Result
     重点源锅(窑)炉的检查及其结果分析与建议
短句来源

 

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    At the measured thermal conductivity, G≈6×10-12 W/K, and a time constant of τ=0.2 μs, and a temperature of 300 mK, the estimated noise-equivalent power NEP=5×10-18 W/Hz1/2, assuming that temperature fluctuations are the major source of noise.
          
    An aperture in a ring laser with plane mirrors is shown to be a major source of rescattering of oppositely directed waves.
          
    The source of urban atmospheric particles is broad, and the major source is the building dust from urban construction.
          
    Vehicle emissions are a major source of air pollution in urban areas.
          
    Conclusions: Faith healers are a major source of care for people with mental health problems in Pakistan, particularly for women and those with little education.
          
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    Research and development of solar system is receiving with increasing support and attention. The sunshine may become one of major source of energy in the next century. To our native land, the utilization of solar energy may be more anxious and important, especially in the rural area.

    本文概述了太阳能利用近年来的发展历史和现状,对太阳能利用的前景进行了评论。分析表明,下一个世纪太阳能将成为主要能源之一,当前在我国农村利用太阳能更有实际意义。

    The case selected in this study is an intense typhoon (Billie) which moved over the Southeast China and interacted with an extratropical frontal system. Kinetic energy(KE)budget and available potential energy (APE) were computed by using the quasi-Lagrangian scheme during the period 10 to 12 Aug. 1976. The main results of this study are: 1) In the weakening process of the landed typhoon, exchange of KE with the environment was small. Then the typhoon could be considered as a "quasi-closed" system. 2) In the...

    The case selected in this study is an intense typhoon (Billie) which moved over the Southeast China and interacted with an extratropical frontal system. Kinetic energy(KE)budget and available potential energy (APE) were computed by using the quasi-Lagrangian scheme during the period 10 to 12 Aug. 1976. The main results of this study are: 1) In the weakening process of the landed typhoon, exchange of KE with the environment was small. Then the typhoon could be considered as a "quasi-closed" system. 2) In the various weakening stages of the landed typhoon, the thermodynamic and dynamic processes were different. When the typhoon moved just over land and accompanied with heavy rain, the latent heat and moist convection were still the major source of KE. The energy sink due to cross-contour flow in the upper troposphere was the important reason for the decrepitude of the typhoon. The barotropic process was dominant in the decrease of KE. However, after the typhoon interacted with the westerlies, the KE generation by baroclinic process increased and the frictional dissipation played a significant role in this stage. 3) Throughout the period of interest, large amount of APE entered into the environmental atmosphere through the lateral boundaries of the typhoon circulation. This may be one of the major processes of interaction between the typhoon and the surroundings.

    本文对一个登陆我国的台风以及它与西风带相互作用的过程进行了能量学分析。计算了动能平衡和有效位能。结果表明:(1)台风在登陆后的减弱过程中,与环境大气的动能交换较小,可以把这个台风看作是一个动能的“准封闭系统”。(2)在登陆台风减弱过程的不同阶段,热力和动力作用很不相同。刚登陆时,伴随着大暴雨,积云对流群是台风的重要动能源。对流层上部穿越等压线的运动是台风减弱的重要原因。其中以正压过程为主。台风与西风带系统相互作用后的动能平衡与温带气旋类似。斜压过程的动能产生率增加,摩擦在台风衰减过程中起重要作用。(3)在台风附近有大量的有效位能释放。通过台风系统的边界有大量位能注入环境大气。而在台风倒槽里新生的气旋,则从环境大气中得到位能。这种过程可能是台风与周围环境相互作用的一种主要方式。

    The major sources of urban traffic noise in our country are the vehicular horns. In order to evaluate the contribution of horn sound to urban traffic noise, this paper presents a simulated model of "equivalent noise vehicle". With such model, the total noise levels predicted from the vehicles and their horns can be obtained. Comparison of these results with the measured data at various elevations of the multistorey buildings shows that the agreements are fairly good. In this paper, the percentile exceeded...

    The major sources of urban traffic noise in our country are the vehicular horns. In order to evaluate the contribution of horn sound to urban traffic noise, this paper presents a simulated model of "equivalent noise vehicle". With such model, the total noise levels predicted from the vehicles and their horns can be obtained. Comparison of these results with the measured data at various elevations of the multistorey buildings shows that the agreements are fairly good. In this paper, the percentile exceeded sound level L_(50) as a simple function of the height of elevation is also found. Finally, some controls of traffic noise in urban areas are proposed from the theoretic analysis.

    在我国城市交通噪声中较大的声源是车辆的喇叭,为了计算喇叭声对城市交通噪声的作用,本文设想了一种“噪声当量车”模型.用这样的模型,可以对车辆和喇叭噪声的总声级进行预计,所得结果与在高层建筑的各层所测得的数据比较,一致性相当好.此外,文中还得出被超越百分率声级L_(50)与高层建筑各层高度的简单关系式.最后根据理论分析对城市交通噪声的控制措施提出一些建议。

     
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