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Based on the climatic and phonological conditions at each stage, the development characteristics of the arthropod community as well as the management strategies of its dominant pests were discussed.
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可将枣园节肢动物群落在时序上分为发展期、过渡期、鼎盛期和衰减期4个阶段，并结合气候、物候变化，讨论了各阶段群落的发生特点和主要害虫的治理对策。 |
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Based on the close packing and grain composition theory, a new anti-gas channeling lightweight high performance cement slurry system has been developed with industrial drift beads as lightweight additive and superfine gel as strengthening agent.
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摘要基于紧密堆积和颗粒级配理论，研制了一种以工业漂珠为减轻剂、以超细胶凝材料为增强剂的新型低密度、高强度防气窜水泥浆体系。 |
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Based on the co-linearity analysis of runoff and precipitation among different hydrological stations and various kinds of water and soil conservation measures, a statistical hydrological model of precipitation-soil and water conservation-runoff for the ri
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摘要本文在变量共线性分析基础上，提出了流域降水量标度和水土保持标度及其计算方法，建立了流域降水水土保持－径流统计模型，该模型不仅能分离水土保持措施对河川径流量影响程度，而且还可分析降水及水土保持对流域径流量变化的影响。 |
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Based on the cohesive theory of Halliday and other linguists, this paper gives a concrete analysis of English newspaper and magazine discourse and points out that lexical cohesion enables the unification of the context of the discourse, that it's the majo
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本文以韩礼德等语言学家的衔接理论为基础，对英语报刊语篇进行具体分析，指出词汇衔接能使语篇达到统一的语境，是构建语篇主题以及使语篇连贯的主要手段。 |
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Based on the collected data of mud rock flow in combination with rainfall condition, the author puts forward the early warning precipitation and range for slope mud rock flow, slide mud rock flow and gully mud rock flow and countermeasures.
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根据大苗山已经收集到的泥石流资料，结合降雨情况，提出坡面泥石流、滑坡泥石流和沟谷泥石流预警雨量和预警范围、治理措施。 |
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Based on the collection of the experiences and lessons from the network operation during the earthquake occurrence in FEMA and other organizations in USA, the countermeasures against the network system affected by the natural disaster or man-made hazards
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摘要根据收集的美国FEMA等机构有关地震中信息网络运行的经验教训资料，综述了自然灾害和人为事件对信息网络系统冲击的对策研究。 |
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Based on the collections of the dissertations, works and documents related to these bamboo slips, this article gives a research review on the retrospection of excavation and research history, the discussion and practice of the adjustment of the bamboo sli
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本文尽量搜罗有关这两批竹简的研究论文、论著及相关资料，分发掘与研究歴史的回顾、编联与缀合的方法论的探讨及其实践、疑难字的释读、文字编以及标识符号的记录等项目作了述评，以期对今后的研究有所助益。 |
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Based on the color aerial photo and the field survey data, this paper analyze the information of various land use type change and spatial characteristics in Yanan Ecological Construction Demonstration Area from 2000 to 2003 by RS, GIS and statistics metho
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摘要以航片等资料为基础，借助遥感影像解译、地理信息系统空间分析功能以及数理统计方法，分析了延安生态建设示范区2000-2003年间各土地利用类型的数量变化和空间特征，并且首次引入退耕指数、退耕弹性系数等指标对退耕还林工作进行评价。 |
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Based on the combination of evolution strategy and limit equilibrium method, an effective global optimization method is proposed to allocate the most dangerous non-circular critical slip surface corresponding to the minimum factor of safety in slopes.
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摘要将进化策略与边坡稳定极限平衡法相结合，建立了边坡任意形状最危险滑裂面及相应最小安全系数的全局优化搜索方法。 |
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Based on the combination of genetic algorithm and the BP neural network structural model, a new method with which neural network weight can be trained using genetic algorithm is designed.
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摘要在遗传算法与BP神经网络结构模型相结合的基础上，设计了用遗传算法训练神经网络权重的新方法。 |
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Based on the combination of the adjacent diffusion method and the selective smoothing filter, a new anisotropic diffusion algorithm for image enlargement is proposed, which is called as the adjacent diffusion and selective smoothing algorithm (ADASS).
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摘要提出了一种新型的各向异性扩散图像放大的邻域扩散选择平滑法(ADASS)，将邻域扩散法与选择平滑滤波器相结合，降低了算法的复杂度，并提高了图像的放大质量。 |
