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田面
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  field surface
     For paddy filed, after elimination of water in field surface it is essential for the rest of water in field surface and surplus gravity water in soil to be eliminated by buried pipe, and conduit design discharge for drainage depend upon them.
     对水田而言,在田面水排除后,依靠暗管要排除地表残留水和过剩的土壤重力水,据此决定暗管设计排水量。
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     The concentration of each kind of nitrogen in field surface water is relative higher in one week after fertilizerd, and it increase with the increasing of nitrogen fertilizer, the each kind of nitrogen in field surface water with optimization method is lower than that with normal method, so the key period of surface water manage in paddy field is a week just after fertilized.
     而且田面水各形态氮的浓度在1周内比较高,并随施肥量的增加而升高,优化施肥田面水氮浓度比习惯施肥低,所以施肥后1周左右是稻田田面水管理的关键时期。
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     Furthermore, a sensitivity analysis was carried out on several key parameters. Calculated results show that the variation of dissolved inorganic phosphorus (DIP) in field surface water and leakage water can be simulated dynamically by the model.
     计算结果表明,模型能较好地模拟田面水及渗漏水中溶解态无机磷(DIP)浓度的动态变化.
短句来源
     The result, through researching on each kind of nitrogen variation in field surface water after applying urea, showed that the total nitrogen in field surface water increased greatly one day after fertilizing, after that it decreased with the time go.
     对稻田田面水各形态氮素动态变化的研究表明,田面水中总氮浓度在施肥后一天急剧上升,此后一直呈下降趋势;
短句来源
     After rain stops, because of the drainage by buried pipes, the field underground water level rapidly drops down to 0.6~0.7m from the field surface During the submersion irrigation period of paddy field, mole channel drainage can increase seepage strength between the buried pipes and drain the harmful substances away.
     雨停后,在暗管排水作用下,地下水能迅速回降到离田面0.6~0.7m; 稻田淹灌期,鼠道排水可增加两暗管之间的入渗强度,排泄土壤中有害物质。
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  “田面”译为未确定词的双语例句
     Results showed,Through the general observation of phosphorus transport under different land use of purple soil, we calculate that the total P in surface water of upland, paddy fields, forest land and grass land is 0.42mg/L, 0.19mg/L, 0.08 mg/L, 0.10 mg/L respectively.
     1 通过对紫色土不同土地利用方式下磷素迁移的观测,得出坡耕地径流水中总磷浓度0.42mg/L,水田田面水总磷浓度为0.19mg/L,林地径流水总磷0.08mg/L,草地为0.10 mg/L。
短句来源
     If 1/9 surface of terraced field is used to collect rainwater, existing 230.8 hm2 terraced field will collect 101.6 thousand m3 amount of rainwater.
     王家沟流域梯田田面5 月~10 月份可集流352.2mm,若梯田田面的1/9 用于集流,现有230.8hm2 梯田可集流10.16 万m~3。
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     The results showed that duckweed would accelerate urea hydrolization and the velocity constant of urea hydrolization in control,low-density duckweed(D_1) and high-density duckweed(D_2) treatments were 0.02,0.03 and 0.04/h,respectively.
     结果表明,浮萍可明显加快田面水尿素态氮的水解过程,对照、低浓度浮萍(D1)和高浓度浮萍(D2)处理中尿素水解速率常数k分别为0.02,0.03,0.04/h;
短句来源
     During the whole growth season, the total runoff loss of N and P reached as high as 38.8 kg N·hm-2 and 0.95 kg P·hm-2, mainly through soil surface water.
     整个水稻生长季稻田氮磷的流失总量分别达38.8和0.95kg. hm-2,且主要以田面水径流流失为主;
短句来源
     The range of slope gradient increased was in direct proportion to the width of terrace, which was 2.5°~11.5° per meter, and in the inverse ratio of the slope length, which was 0.5°~7.0° per meter.
     集水区斜坡水平距每减小1m,微集水区平均坡度增加0.5°~7.0°,集水区斜坡水平距越小,增幅越大; 田面水平宽度每增加1m,平均坡度增加2.5°~11.5°。
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  相似匹配句对
     JADES FROM HETIAN
     玉出和
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     The Influence of the Farmland Micro-terrain on the Emission Uniformity for the Emitter
     微地形对滴灌灌水均匀性的影响
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     and then digital terrain model can be generated.
     模型。
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     Determination of Synthetic Surface Roughness Coefficient in Film Hole Irrigation
     膜孔灌溉综合糙率系数的确定
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     Bethe Surface of Krypton
     氪的贝特
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  field surface
The ions are produced by nonequilibrium field surface ionization.
      
The compatibility of low concentration (α-phase) proton exchange channel waveguides with electric field surface periodic poling of congruent lithium niobate (SPPLN) crystals has been experimentally demonstrated.
      
The electric field volume integral equation is applied to the material region and the electric field surface integral equation is enforced over the conducting surface.
      
In our theoretical model, we represent the laser excitation by a localized impulsive force acting on the sample surface and calculate the far-field surface response of an elastically anisotropic solid to such a force.
      
The seasonal average ratio of sensible heat flux (H) divided byRn stayed at about 15% above the field surface; the seasonal average ratio of conductive heat flux (G) divided by Rn varied between 5% and 13%, and the averageG/R>amp;gt;
      
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According to the results of the boat model testa and the full-scale boat tests carried out in the test pools, the sailing resistances of the floating boat on water under different velocities are studied in this paper.Some suggestions are proposed to reduce the resistance. In order to study the sliding resistance of the floating boat in paddy field soil, a soil bin is built in which the tests are conducted.The results indicate that the sliding resistance is greatly reduced by the lubrication effect of a thin...

According to the results of the boat model testa and the full-scale boat tests carried out in the test pools, the sailing resistances of the floating boat on water under different velocities are studied in this paper.Some suggestions are proposed to reduce the resistance. In order to study the sliding resistance of the floating boat in paddy field soil, a soil bin is built in which the tests are conducted.The results indicate that the sliding resistance is greatly reduced by the lubrication effect of a thin film plaster on the soil surface. The theory of liquid lubrication is introduced into this study.The data obtained from the soil bin tests are entered into the electronic computer and the regression analysis is made with a special developed program. A semi-empirical expression for sliding resistance of floating boats is presented. The measured and predicted values of the sliding resistance in soft paddy field soil are found in good correlation. The resistance coefficients presented in this paper can be used as the reference to predict the sliding resistance of floating boat under similar conditions.

船式拖拉机在深软水田中工作、或在河网地区为进行田间转移而在水中行驶时,船体是其主要的支承部件。本文根据水池试验得到的船模和船拖原型船体在不同前进速度下行驶阻力的试验结果,研究了船体在水中的行驶阻力,提出了降低阻力的途径。为研究船体在水田泥中的滑行阻力,研制了一条土槽进行试验。结果表明:田面有泥浆薄层时船体滑行阻力将大大降低。引入液体润滑理论对泥浆薄层的润滑作用进行了探讨,并用电子计算机对土槽试验数据进行回归分析,提出了船体滑行阻力的半经验表达式。船体在稀软田中滑行阻力的实测和预测值看来是相当一致的。文中列出的阻力系数值可供预测同类条件下的船拖船体滑行阻力时参考。

Single-factor tests from 1982 to 1984 including four irrigation technologies in deep water, shallow water, moist condition and controlled moist condition, proved that the water consumption, living state and yield of rice all differ obviously with different irrigation technologies.The technology of controlled moist condition for rice production on nearly 650 ha of rice field made it clear that the new irrigation technology has various advantages of saving water and power, fertilizer-enduring, lodging-resisting,...

Single-factor tests from 1982 to 1984 including four irrigation technologies in deep water, shallow water, moist condition and controlled moist condition, proved that the water consumption, living state and yield of rice all differ obviously with different irrigation technologies.The technology of controlled moist condition for rice production on nearly 650 ha of rice field made it clear that the new irrigation technology has various advantages of saving water and power, fertilizer-enduring, lodging-resisting, high-quality and high yielding etc.Irrigation of controlled moist condition, which control the water content in the soil, without water on the soil surface after the rice turns green, improves the ventilating properties of the soil. The harmful and poisonous material could not be produced in general in the soil. This provides the possibility of solving the degeneration problem of rice field.Using this irrigation technology, the rice roots will grow deep and strong. The rice will be short-stalked with high index number of leaves in the harvest period and long ear. The yield is high.This provides us the research direction for the reasonable use of water resources.Single-factor tests from 1982 to 1984 including four irrigation technologies in deep water, shallow water, moist condition and controlled moist condition, proved that the water consumption, living state and yield of rice all differ obviously with different irrigation technologies.The technology of controlled moist condition for rice production on nearly 650 ha of rice field made it clear that the new irrigation technology has various advantages of saving water and power, fertilizer-enduring, lodging-resisting, high-quality and high yielding etc.Irrigation of controlled moist condition, which control the water content in the soil, without water on the soil surface after the rice turns green, improves the ventilating properties of the soil. The harmful and poisonous material could not be produced in general in the soil. This provides the possibility of solving the degeneration problem of rice field.Using this irrigation technology, the rice roots will grow deep and strong. The rice will be short-stalked with high index number of leaves in the harvest period and long ear. The yield is high.This provides us the research direction for the reasonable use of water resources.

1982—1984年麦仁店水稻灌溉试验站进行了深水、浅水、湿润、控制湿润四种水稻灌溉技术处理的单因子对比试验证明:水稻的耗水量和稻作生态、产量都随着灌溉技术的不同而具有明显的差异,1985年在微山县鲁桥镇近万亩范围内推广了水稻控制湿润灌溉技术,表明这种新的灌溉技术具有节水、节能、耐肥、抗倒、优质、高产的优点,效益显著,深受群众欢迎. 控制湿润灌溉为水稻从返青期以后,田面不建立水层而按土壤含水量控制,改善了土壤通气性能,使之处于氧化环境,土壤中不易产生有害的物质,为防止水田向老朽化水稻土壤的退化提供了可能. 这种灌溉技术下的水稻根深,根系发达,黄白根多,株矮,杆茎坚韧,收获期叶面积指数高,穗长,粒多,结实率高,千粒重大,具有高产的优势,灌溉水的生产效率高,为合理利用水资源提供了研究方向.

The cycles and apparent balances (ABs) of N, P, K, Ca and Mg were studied in two kinds of normal paddy field ecosystems with the crop rotations in both the wheat-rice sequence and the barleyrice-rice sequence. The research was based upon field experiments on three critical types of paddy soils in the Tai Lake region, The transportation of concern was inputs through fertilization, irrigation, precipitation, sowing and transplantation, and outputs by crop removal, surface drainage and leaching. Nitrogen output...

The cycles and apparent balances (ABs) of N, P, K, Ca and Mg were studied in two kinds of normal paddy field ecosystems with the crop rotations in both the wheat-rice sequence and the barleyrice-rice sequence. The research was based upon field experiments on three critical types of paddy soils in the Tai Lake region, The transportation of concern was inputs through fertilization, irrigation, precipitation, sowing and transplantation, and outputs by crop removal, surface drainage and leaching. Nitrogen output by volatilization of ammonia, nitrification and denitrification was taken into account in addition to the outputs above. The ABs of N, P, K, Ca and Mg in two crops Systems on the soils during the period of experiment were+ 60-+ 120, +7.5-+60, -80--130, -85-+8 and -24--35 kg · ha-1 (aselement),respectively. Their input/output ratioes (I/O ratioes) in the same sequence were. 1.2-1.4, 1.2-2.2, 0.32-0.53, 0.78-1.0, and 0.70-0.85. The ABs and I/O ratioes of the same nutrient in three crops systems were +120-+ 200, +15-+ 60, -20--90. -90--130, -45--65 kg. ha-1 and 1.3-1.5, 1.5-2.2,0.53-0.82, 0.75-0.86,0.60-0.81, respectively. The ABs of a given nutrient in two types of Systems at all sites were similar:the balances of P and N were positive,while those of K, Mg and Ca were negative.

本文在太湖流域研究了平原地区三个不同试验点上小麦-水稻和元麦-水稻-水稻两种轮作方式下常规稻田生态系统中氮、磷、钾、钙、镁等五种大量营养元素的循环及表观平衡状况。所考虑的输入途径有施肥、灌溉、降雨、播种及移栽;输出途径有作物收获、田面排水和渗漏淋溶。此外,氮素的输出还包括了氨挥发及硝化与反硝化脱氮。三试验点两种熟制的稻田生态系统中各元素的表观平衡状况基本一致,在土壤养分库中磷、氮有盈余,钾、镁和钙有亏损。

 
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