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覆盖     
相关语句
  cover
     Remote Sensing Study of Land Cover Change and its Environmental Effects in China
     中国土地覆盖变化与环境影响遥感研究
短句来源
     Study on Land Use/Land Cover Change Based on Geo-spatiotemporal Database in China
     基于地理时空数据库的中国近期土地利用/土地覆盖变化研究
短句来源
     A Study on Land Cover Feature Extraction and Classification Using High Dimensional Remote Sensing Data
     高维遥感数据土地覆盖特征提取与分类研究
短句来源
     Study on Land-Use/Cover Change and Carbon Cycle of Xilin River Basin,Inner Mongolia Based on Remote Sensing and GIS
     基于遥感和GIS的内蒙古锡林河流域土地利用/土地覆盖变化和碳循环研究
短句来源
     Based on FVC Data to Analyse the Spatiotemporal Variation of Vegetation Cover in China Western Arid Land 1982~2000
     基于FVC指数对1982~2000年中国西部干旱区植被覆盖时空变化特征分析
短句来源
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  covering
     A Zonal Covering Computer Procedure for Minimax Estimation of Response Surfaces
     响应曲面的极小极大估计的覆盖带计算法
短句来源
     Studies on the Mechanism of Increasing Yield of Wheat under Plastic Covering
     小麦地膜覆盖增产机理初探
短句来源
     SOME RESULTS ON COVERING SYSTEMS OF CONGRUENCES
     关于覆盖同余式的若干结果
短句来源
     STUDY ON TOMATO ROOT SYSTEM BY THE USE OF COVERING PLASTIC
     地膜覆盖栽培番茄根系的研究
短句来源
     Identification of Noise Sourses by Covering the Engine with Lead
     用铅覆盖法识别发动机的噪声源
短句来源
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  coverage
     Research on the Coverage Control in Wireless Sensor Networks
     无线传感器网络覆盖控制研究
短句来源
     Research on Connectivity and Coverage Problems in Wireless Sensor Networks
     无线传感器网络中连通与覆盖问题研究
短句来源
     Study of WCDMA Traffic-mix with Coverage and Capacity Simulation Analysis
     WCDMA混合业务模型及网络覆盖和容量仿真分析与研究
短句来源
     THE DESIGN OF RECURSIVE ORBIT AND COVERAGE ORBIT
     卫星循环轨道与覆盖轨道的设计
短句来源
     Influence of Interferential Wave of E_s Ionosphere on FM Broadcasting Coverage Network and Countermeasures Could Be Taken.
     E_s层干扰波对调频广播覆盖网的影响及其对策
短句来源
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  mulching
     The mulching technique can increase 2.7%~89.0% of water utilization rate; decrease 2.5%~12.7% of water consumption and 2.5%~35.0% of water consumption strength in maize production.
     采用覆盖技术可以提高玉米水分的利用率2.7%~89.0%,降低耗水量2.5%~12.7%和耗水强度2.5%~35.0%,水分利用趋于合理。
短句来源
     tillage with standing stubble,straw mulching and straw incorporation are respectively(10.2%,)(12.6%) and 14.3% higher than that of the contrast.
     麦秸高茬收割、麦秸覆盖、麦秸翻压分别较对照增产10.2%、12.6%、14.3%。
短句来源
     The ratio of GA3/ABA,IAA/ABA,Zr/ABA and iPA/ABA declined from unmulching to 6 ~ 7 year mulching,particularly GA3/ABA,IAA/ABA,GA3+IAA/ABA,and also decreased from 4 ~ 5 year mulching to 6 ~ 7 year mulching,the same as the aging year of rhizome.
     GA3/ABA、IAA/ABA、Zr/ABA和iPA/ABA比值均随覆盖时间增加而下降,特别是GA3/ABA,IAA/ABA,GA3+IAA/ABA比值较大,且从4~5a覆盖到6~7a覆盖时均有显著下降,与竹鞭衰老时间相吻合;
短句来源
     The saving-water effects of the double mulching with plastic film and straw,and W plastic film techniques increase by 3.2%~8.7% and 0%~9.5% compared with the traditional plastic film mulching technique respectively.
     采用地膜/秸秆二元覆盖和W地膜覆盖新技术节水效益较传统地膜覆盖提高3.2%~8.7%和0~9.5%,应作进一步深入研究。
短句来源
     The ridge mulched plastic film and furrow mulched straw cultivation module can increase water utilhzation efficiency to 11.59 kg·mm~(-1)·hm~(-2),and water saving of unit grain produce is 37.21%~39.85%,yield increasing of unit water consumption reaches 58.68%~66.25%,output and input proportion is 1.34∶1,which are higher than those of other mulching cultivation modules.
     垄覆膜沟覆秸秆栽培模式提高水分利用效率到11.59 kg. mm-1.hm-2,单位粮食生产节水量达到37.21%~39.85%,单位耗水量增产达到58.68%~66.25%,产投比为1.34∶1,均高于其它覆盖栽培模式。
短句来源
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  cover
Here its projective analogue, given by the double cover groupSL(2, ?) of the projective groupPSL(2, ?) for patterns, is developed.
      
We consider both necessary and sufficient conditions which cover most of the special cases previously considered.
      
The monochromatic tree partition problem is to find the minimum number of vertex disjoint monochromatic trees to cover the all vertices of G.
      
Based on the IGC results, it can be deduced that the monolayer cover is around 1.9% for CaCO3 treated with a titanate coupling agent.
      
Increased vegetation cover and change in farming techniques were suggested to prevent and control wind erosion of sand and soil.
      
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  covering
The necessary condition on the weight is similar to the Ap condition but involves rectangles (instead of cubes) arising from a covering of a star-shaped set related to Ω.
      
The analyticity of functions from the RKHS enables us to derive some estimates for the covering numbers which form an essential part for the analysis of some algorithms in learning theory.
      
The relations among the dominating number, independence number and covering number of hypergraphs are investigated.
      
In this approach, PNIPAM network was formed by radical polymerization covering PCL particles.
      
In this method the uncertainty of the system to be controlled was normalized firstly, and then the partition of unity that was subordinated to an open covering of state variables compact set was constructed.
      
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  coverage
We develop a method to estimate the power spectrum of a stochastic process on the sphere from data of limited geographical coverage.
      
Some simulation results indicate that the method performs better than the normal approximation method in term of coverage accuracies.
      
Algorithm for the placement of nodes for effective coverage
      
The least redundancy coverage strategy (LRCS) strategy takes the smallest redundant coverage as the criterion whose goal is to maximize the lifetime of the sensor network.
      
Simulations show that LRCS outperforms the coverage configuration protocol and is suitable for various situations.
      
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  mulching
The efficiency of traditional agrotechnical practices (autumn treatment of soil and its mulching with plant residues (straw)) for the control of the hydrological cycle on small catchment areas during spring snow melting is assessed.
      
Measurements of N2O emissions from conventional rice cultivation (CRC), CRC with straw mulching, system of rice intensification (SRI) and SRI with plastic film mulching were conducted through static chamber/gas-chromatography techniques.
      
The results showed that after jointing stage the average N2O emission flux of SRI with plastic film mulching increased significantly than CRC with straw mulching and SRI, the leaf stomatal conductance of those showed the same trend (P>amp;lt;0.05).
      
Yield and total quantity of N2O emission in CRC with straw mulching enhanced 13.7% and 10.7% compared with those of CRC, respectively.
      
The total quantity of N2O emissions reduced 3.6% in SRI with plastic film mulching compared with CRC, however, the yield increase of that was not significant.
      
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