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- Based on the above study, a three-dimensioned unsteady heat transfer model of U-type UCHE was established, which took different thermal properties of soil layers and groundwater flow into account. 在上述研究基础上,围绕埋地换热器与周围土壤的换热过程,考虑沿深度方向土壤层之间热物性的不同以及地下水流动等因素,建立了垂直U型埋地换热器三维非稳态数值传热模型。
- Influence of Properties of Soil Layer on Site Amplification Effect for SH Waves 土层性质对SH波场地放大效应的影响
- There is no influence for the properties of soil by using PASP. 施用肥料增效剂聚天冬氨酸对土壤性质无明显影响。
- properties of soil layer 土层性质
- Field capacity is a property of a unit volume of soil. 野外容水率是单位土体的一种特性。
- They serve as a separation layer to form a stable boundary between layers of soil to maintain the integrity, character and performance properties of each layer. 土工织物相当于一个隔离层,在不同的土层之间形成稳定边界,以保持每层的完整性、固有特性以及使用性能。
- Ecological distribution and biochemical properties of soil microorganisms in Gaoligong Mountains. 高黎贡山土壤微生物生态分布及其生化特性的研究。
- Effects of Soil Salt, Drought and Their Intercrossing Stress on Growth Properties of Gleditsia sinensis Lam. 盐分、干旱及其交叉胁迫对皂角幼苗生长性状的影响。
- Freezing and thawing actions greatly change the mechanical properties of soil by influencing its microstructure. 冻融作用对土的力学性质改变很大,而这又是源于冻融作用对微结构的影响;
- An experiment was conducted to study the physic-chemical properties of soil in the main streets of Changchun City. 摘要对长春市主要街路土壤的理化性质进行了测定。
- Title: Effects of Soil Salt, Drought and Their Intercrossing Stress on Growth Properties of Gleditsia sinensis Lam. 关键词:林木育种;盐分;干旱;交叉胁迫;皂角;生长性状
- Preliminary study on mechanical properties of soil was done by PFC numerical simulation. 通过颗粒流数值模型试验,从细观力学角度对土的工程力学特性作了初步的研究。
- He is studying the properties of these particles. 他在研究这些粒子的性质。
- Study on the Biological Properties of Soil under the Mixed Forests of Pinus tabulaeformis Carr. And Robinia pseudoacacia L. 油松刺槐混交林土壤生物学特性研究。
- Thinning stands with the thinning intensity of about 20% and 30% had no significant effects on species diversity, biomass of shrub and herb, and physical properties of soil. 各林分的树种组成在12年间基本没有发生变化,即间伐没有显著地改变林分的树种组成,目前的树种组成即落叶松、其他针叶树(云杉、冷杉和红松)和阔叶树组成比约为6:3:1可能是相对稳定的群落。
- The results in this paper fully showed the synergetic effect of humic acid on chemical fertilizer and ameliorable effect on physical properties of soil. 通过一些试验充分验证了腐植酸对化学肥料明显的增效作用,也总结了含腐植酸的有机-无机复混肥对土壤物理性状的改良作用。
- The simulation results of the backscattering of multilayered soil, dielectric properties of soil are given and the models are validated by special case of single layered soil. 对裸露土壤深层后向散射、土壤介电特性给出仿真结果。通过已知的单层土壤(双层介质粗糙面模型)的后向散射验证了模型的正确性。
- CAI Dianxiong,WANG Xiaobin,KEITH SAXTON.Effects of soil water-holding agent on water retention properties of soil and crop emergence[J].Soil and Fertilizers,1999(1):13-16. [6]蔡典雄;王小彬;KEITH SAXTON.;土壤保水剂对土壤持水特性及作物出苗的影响[J]
- He is studying the medicinal properties of wild plants. 他正在研究野生植物的药物特性。
- Interaction between systems or between properties of a system. 系统间或一个系统的各种特性之间的相互作用。