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vegetable plantation
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  菜地
     Cd? Ni and As were 61.7 mg·kg-1, 153.4 mg·kg-1, 33.7 mg·kg-1, 0.24 mg·kg-1, 28.7 mg·kg-1 and 4.2mg·kg-1 respectively; Four kinds of heavy metals (Cu?Zn?Pb and Cd) were the main pollution elements because of their accumulating trends in the vegetable plantation soil in the area.
     结果表明,Cu、Zn、Pb、Cd、Ni、As的平均含量分别为61.7、153.4、33.7、0.24、28.7和4.2mg·kg-1,Cu、Zn、Pb和Cd4种元素呈累积趋势,为该区域菜地土壤的污染元素。
短句来源
     Environment Quality Evaluation on Heavy Metalsof Vegetable Plantation Soil in Suburbsof Several Cities in Jianghan Plain
     江汉平原城郊菜地土壤重金属的环境质量评价
短句来源
     This paper studied the contents of heavy metals (Cu?Zn?Pb?Cd?Ni?As) of vegetable plantation soil and their affecting factors in the suburbs of several cities in Jianghan plain with field investigation and laboratorial analysis in order to provide scientific recommendations for the pollution prevention of the heavy metals. The results showed that the mean contents of Cu? Zn?
     采用野外调查与室内分析的方法研究了江汉平原及宜昌市城郊菜地土壤重金属Cu、Zn、Pb、Cd、Ni、As(铜、锌、铅、镉、镍、砷)的含量及其影响因素。
短句来源
     Soil enzyme activity varied obviously with duration of vegetable plantation and could be cited as a sensitive indicator of changes in soil quality.
     不同利用年限菜地土壤酶活性变化幅度较大,能够更为敏感的指示土壤质量的变化。
短句来源
     Contents and Affecting Factors of Heavy Metals of Vegetable Plantation Soil in the Suburbs of Several Cities in Jianghan Plain
     城郊菜地土壤重金属含量及其影响因素
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  “vegetable plantation”译为未确定词的双语例句
     Evaluation on environmental quality of heavy metals in vegetable plantation soils in the suburb of Hangzhou
     杭州市郊蔬菜地土壤重金属环境质量评价
短句来源
     Evaluation on Environmental Quality of Pb,Zn and Cu Contents in Vegetable Plantation Soils and Vegetables in Hangzhou Suburb
     杭州市郊蔬菜基地土壤和蔬菜中Pb、Zn和Cu含量的环境质量评价
短句来源
     Study on Guidelines for Health Risk to Heavy Metals in Vegetable Plantation Soils in China
     中国蔬菜地土壤重金属健康风险基准的研究
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     Suitability and Quality Evaluation of Regional Vegetable Plantation Based on GIS
     基于GIS技术的区域蔬菜地适宜性及其质量评价
短句来源
     The Evaluation of the Cadmium (Cd) Pollution and Spatial Variability of Vegetable Plantation Soil in Urumqi
     乌鲁木齐蔬菜主产区土壤镉污染评价及空间变异分析
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  相似匹配句对
     2 vegetable;
     植物状态 2例 ;
短句来源
     Suitability and Quality Evaluation of Regional Vegetable Plantation Based on GIS
     基于GIS技术的区域蔬菜地适宜性及其质量评价
短句来源
     Vegetable Tannin
     植物单宁
短句来源
     Study on Guidelines for Health Risk to Heavy Metals in Vegetable Plantation Soils in China
     中国蔬菜地土壤重金属健康风险基准的研究
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     Yunnan:Plantation Research
     云南林纸“突围”
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  vegetable plantation
Environmental accumulation of heavy metals in the vegetable plantation soils was proportional to heavy metal accumulation in vegetables and both were inversely proportional to the distance from the lead/zinc mine.
      
The vegetable plantation soils were polluted with Pb, Cd, Cu and Zn, especially by Pb and Cd.
      
For ditch culture system, carps were cultured in the ditch in the fruit or vegetable plantation.
      


Successions of parallel wind barriers are broadly used on vegetable plantations in North China during cold season. The details o?structure and dimension of the harries may vary from place to place and from time to time in accordance with the experience of the farmers. In general the barriers are about 1.5-2 meters high, 100-200 meters long and are made of millet stems or reeds. In order to protect the crops from the prevailing cold N-W wind, the fences are oriented in a west-east direction. The inclination...

Successions of parallel wind barriers are broadly used on vegetable plantations in North China during cold season. The details o?structure and dimension of the harries may vary from place to place and from time to time in accordance with the experience of the farmers. In general the barriers are about 1.5-2 meters high, 100-200 meters long and are made of millet stems or reeds. In order to protect the crops from the prevailing cold N-W wind, the fences are oriented in a west-east direction. The inclination and density of the fences are varied gradually with the season. In the winter and early spring the barriers are impermeable and inclined toward the south at an angle of about 60-70° to the horizon, and in the early summer they become eract and very open (blockage ratio less than 40%). The distance between two successive impermeable fences is usually about 5 meters and the crop growing area is confined within a narrow s'rip extending 2-3 meters to the south from each fence. The distance between two successive open fences as well as the width of the protected area may exceed 20 meters.In this paper, a preliminary investiga'ion on the micrometerological effect of the impermeable fences are given. Observations and experiments within the narrow growing strip show that:-1. The wind speed is severely reduced. In case of N-W wind at 25cm above the ground immediately to the lee of the fence air is mearly stagnent, and at a distance of about 2 meters from the fence the air speed may increase to about 35 percent of the free wind speed.2. The barriers shade the northern part of the sky and reflect the direct and diffused solar radiation coming from the south. The interaction between shading and reflection effect influence the total incoming solar radiation in such a manner that large amount of incoming radiation is associated with high fences, low cloud amount, low solar attitude, small distance from the fence, high reflectivity of the fences surface and among these the cloud amount is the most important one. It is found that at noon the total incoming solar radiation within the narrow strip may exceed that in the open appreciably when the sky is clear and is much lesser than that in the open in cloudy or raining days.3. The fences obscure a large solid angle of the sky so that the out going long wave radiation is noticeably reduced.In North China, the skies are generally clear in winter and early spring, especially after the passage of a cold front, the weather may usually be characterized by s'rong N-W wind and low turbidity and iA such a region the impermeable wind barriers rnay be of great usefulness.

本文从观测资料出发,讨论并分析得出风障微气象效应的形成规律.风障具有下列微气象效应:i)强烈削减风速;ii)障前背风区内产生回流;iii)晴天正午障内短波总辐射增加,多云、明天或清晨、傍晚风障具削减总辐射的作用;iv)削减障内地面上有效辐射;v)削减紧贴地面气层内的湍流交换. 其次,文中提出了改迸风障微气象效应的措施.最后讨论了改进风障措施的效果.

The plant growth regulator EF was fractionated with different solvents to obtain chloroform, ethylacetate, ethanol and water soluble fractions. These fractions were used for vegetable plantation test in laboratory and in field. The results showed that among the four fractions of EF, the chloroform soluble fraction is the most active one, which had significant and stable effect on the increment of yields of both leafy and fruit vegetables.

我国现在铁路编组场尾部平面调车全部采用人工拧手闸和下铁鞋的笨重而落后的作业方式。为了提高编组场的综合能力、解决峰头和峰尾的矛盾、改变尾部作业的技术落后状态,兰州西站与哈中心采用微机可控顶与停车顶结合的调速系统来解决尾部平面调车自动化问题。经过科学的分析论证与两股道的运用试验证明,微机可控顶、停车顶调速系统是比较理想的方案,为实现尾部平面调车自动化闯出了一条路子。

Photosynthetic bacteria (PSB)were used to treat highly concentrated nightsoil wastewater and produce a liquid fertilizer.The results from the analyses and field experiments on vegetable plantation indicated that nightsoil wastewater having been treated by PSB could all be transformed into an organic fertilizer containing large amount of PSB. This fertilizer proved safe,sanitory and effective.

用光合细菌(PSB)对高浓度粪便污水进行了液肥化处理。经分析化验和农田蔬菜种植试验,证明粪便污水经PSB液肥化处理后可以全部转化为含有大量PSB的安全、卫生、优质、高效的有机肥料。

 
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