| 1. | Granular materials is the object or medium actuated by lots of engineering machinery and bulk solids handling machinery . digging and breakdown of the granular structure is a major actuating mode or objective in granular engineering
散体材料是许多工程机械与散货装卸机械的工作对象与工作介质，散体结构的挖掘与破坏是散体工程中的一个主要工作方式与目的。
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| 2. | It is indicated after laser remelting , the density of the nano material infiltrated coating is improved and grain size is decreased greatly . in above researches , it is found that the nano material is distributed among general material grains to form inter - granular structure of the coating
研究发现，在各种涂层中纳米颗粒明显填充在粗颗粒间，构成晶间型组织结构；初步测试还表明，在al _ 2o _ 3 + 13 wt
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| 3. | This model has wide - ranging application and simple computing procedure . it avoids the narrow - ranging limitations of slide line method , as well as avoids the complicated computing procedure in the simulation of the gradual breakdown process for the granular structure by fem . its analysis results are identical with those of the practical engineering , this model has engineering application value
建立了挖掘过程推压阻力的计算模型，该模型适用面广、计算较简便，既避免了滑移线适用面窄的局限性、也避免有限元分析对散体渐近破坏过程模拟的复杂计算过程，计算结果与工程实际吻合，具有工程实用价值。
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| 4. | It is found that the nano material is distributed not only among general material grains to form inter - granular structure of the coating but also in the general material grains to form intra - granular structure . micro - crack caused by laser will be eliminated greatly . 3 mechanical performances of the ceramic coating manufactured are tested
得到的结论是经过激光熔覆后的涂层致密化程度有了很大的提高，比单纯的激光重熔涂层还高，纳米颗粒不仅填充在晶粒之间，而且还嵌入在大晶粒内部，有利于消除激光作用产生的微裂纹。
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| 5. | The results are summarized below : 1 ) study on soil science indicates that soil granular structure is the focus adjuster for soil fertility and it affects the space , water - grasp , aeration and anti - erosion of soil . and the percentage of aggregate is one of the key index that decides the speed and extent of soil erosion , hardening and degeneration because the soil degeneration will first lead to the disappearance of crumb - structure . so it is very important that the physical course and character of soil in different land use pattern are realized
现将主要结果摘要如下： l 、士壤学研究表明，团粒结构是土壤肥力的中心调节器，影响着土壤的空隙性、持水性、通透性和抗蚀性；任何土壤的退化首先将表现出团粒结构的消失；团聚体百分比是决定土壤侵蚀、板结等物理过程速度和幅度的关键指标之一，了解不同土地利用和土壤管理方式的物理过程和性质相当重要。
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| 6. | It showed that 73 % increasing of toughness in modified composites was achieved without the reduction of other mechanical properties . sem has showed the periodically interleaved system where the co - continuously connected granular structure occurs layer by layer between each ply and the interlayer was relatively very thin
电镜分析表明离位改性的碳纤维单向布周期性增强体系，在每两层增强体之间都有很薄一层规整的球性两相结构，正是这个独特的多层结构使其抗冲击性能大幅提高，而且不会对其他重要的力学性能产生不利影响。
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| 7. | Study on granular structure in laterite vn soil has already been reported in different land use pattern but it is little about soil fertility in karst environment . the better the soil structure , the higher the content of water - stable soil aggregate so there is an osculation correlation between aggregate and structure of soil
不同利用模式下红壤团粒结构的特征研究己有报道，但关于岩溶环境中土壤变化的研究则很少。土壤团聚体与土壤的结构密切相关，团聚体含量高，则说明土壤结构好。
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