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- Effect of wind erosion resistance of soil for wheat and potato strip intercropping farmland 麦薯带状间作农田地表土壤抗风蚀效应研究
- erosion resistance of soil 土壤抗蚀性
- Effects of pulse and direct current on the microstructure and the spark erosion resistance of electrochemical deposit layer as EDM tool were investigated. 结果表明,采用脉冲电流可以使电沉积层的某些性能得到改善。
- The erosion resistance of enameling pipe is enhanced but the equipment is expensive, the procedure is complex, the production coefficient is low and the cost of enameling pipe is high. 俄罗斯率先将搪瓷技术应用于管道防腐,大大提高了管道的耐蚀性,但设备投资巨大、工序繁多、生产效率低,成本相对较高。
- The speed of soil delivering and resistance of auger drill are analyzed theoretically and their formulae are presented. 对螺旋钻具输土速度与阻力进行理论分析,给出了输土速度公式和阻力公式。
- Overall experiments are carried out to investigate influence of both particle size and addition amount of alumina trihydrate (ATH) on the tracking and erosion resistance of SIR materials. 实验研究了氢氧化铝添加量和粒径在硅橡胶漏电起痕和电蚀损过程中的影响作用。
- Compare the resistance of soil saturated in fresh water with that of soil saturated in salt water. 比较浸透淡水与浸透盐水的土壤的电阻。
- There are some clods of soil on the mat. 垫子上有些土块。
- Erosion resistibility of expressway slope is one of important index for evaluating and selecting the type of slope protection. 公路边坡防护的抗冲刷能力是评价和选择防护类型的重要指标之一,而这方面的研究,尤其是定量研究为数不多。
- This kind of soil contains much alkali. 这种土壤含碱丰富。
- Soil available water capacity (AWC) plays an important role in the evaluation of drought resistance of soil,planning and managing water resources and conducting irrigation. 土壤有效含水量(AWC)是评价土壤抗旱性、水资源规划和管理以及指导灌溉的重要依据。
- Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main planting tree species in the Weibei loess plateau. 采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
- It's rich there because of the fertility of soil. 因为土地肥沃,那儿很富裕。
- Clods of soil stuck to the spade. 土块黏在铁铲上。
- Removal or erosion of soil by the action of moving water. 水蚀流水引起的水土流失或侵蚀
- Research on Electrical Erosion Resistance of Tool-electrode in EDM 电火花加工工具电极耐电蚀性能的试验研究
- Considering the influence of the friction resistance of soil around the pile,this paper makes a study of the propagating characteristics of stress waves and displacement waves in different pile types. 将基桩视为一维粘弹性杆件,同时考虑桩侧土体对基桩产生摩阻力作用的情况下,研究了位移波和应力波在不同类型的基桩中的传播特性。
- A Study on Erosion Resistance of the Soil of? Terrace Edge Bund with Prickly Ash 花椒地埂林土壤抗蚀性研究
- Based on that, the static resistance of soils in a STN test can be deduced.Numerical examples show that it is satisfactory for short piles with various soil conditions. 由研究成果显示,初始阻尼法可以有效将土壤参数推估而得,且可以更广泛的应用于各种土壤模式。
- The applied science of soils in relation to crops. 土壤学和作物相关的应用土壤学