1.
Study on Efficient Utilization of Water and Fertilization of Pumpkin in Ridge-furrow System in the Northwest Plateau of Hebei Province;
冀西北高原垄沟系统下小南瓜水肥高效利用研究
2.
Effects of ridge width and planting density on corn yields in rainwater-harvesting system with plastic film mulching on ridge
垄沟覆膜集雨系统垄宽和密度效应对玉米产量的影响
3.
DEM Based Automated Extraction System of Gully in the Loess Upland Gully Area
基于DEM的黄土高原沟壑区沟道系统的自动提取
4.
Application and Theory Research on the Furrow-ridge-opener of Water-application-furrow Seeder;
灌水沟播机起垄开沟器理论及应用研究
5.
Strategic Exclusive Behaviors in System Market and Antimonopoly;
系统市场中的企业策略性排他行为与反垄断
6.
Affect of Whole Covering on Double Ridges and Planting in Catchment Furrows Maize on Yield Increase of Dry Land
旱地全膜双垄沟播玉米增产效应研究
7.
The acid waste waters are discharged into a sump or the sewerage system.
酸性废水被送往销毁池或阴沟系统。
8.
branches of tidal creek systems increased to 6-7 grades.
潮沟系统分级增加，可达6～7级。
9.
Systematic Analysis on "Digital Divide" and Enterprise Cultures;
“数字鸿沟”与我国企业文化的系统分析
10.
Research on DO Intelligent Control System in Oxidation-ditch System
氧化沟系统中溶解氧智能控制系统的研究
11.
Study on Energy Flow of Zhifanggou Watershed Agro-ecosystem in Loess Hilly and Gully Region of Ansai County;
黄土丘陵沟壑区安塞纸坊沟流域生态系统能流特征分析
12.
"Tower of Babel":The Goal of Consensus--On the Ecosystem of Communication in Graduate Education
“通天塔”:沟通达成的共识目标——试论研究生教育的沟通生态系统
13.
Spatial Structure of Tourism System:A Spatial Model for Monopolistic Competition with Asymmetry;
旅游系统的空间结构:一个具有不对称特点的垄断竞争的空间模型
14.
Grand ridge soybean planting and cultivation techniques of pattern matching system of mechanized research
大豆大垄密植栽培技术模式及配套机械化系统研究
15.
Study on Wheat-maize Interplanting in Belts in Furrows and Ridges on the Highland in West Shanxi
晋西旱塬小麦套玉米沟垄条带种植方式研究
16.
Study and Design on Ridge Culture Furrow Irrigation of Wheat Seeder;
畦作沟灌小麦起垄播种机的研究与设计
17.
Optimal Irrigation Schedule of Furrow Irrigation with Plastic Film Mulch Ridge for Processing Tomato in Zhangye;
张掖市加工番茄膜垄沟灌的优化灌溉制度研究
18.
The Influence of Slope Soil Erosion of Corn Growth in Double-ridged Field;
玉米开沟双垄种植对坡地水土流失的影响