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Based on the five types of the construction systems of the Yellow River that are portioned according to the distribution region, position and function of the protection forest in Ningxia Autonomous Region, the distribution of the system, the arrangement o
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摘要该文在将宁夏段黄河护岸林防护林体系划分为5种类型的基础上，分析了该地区防护林的体系分布、树种配置、生长状况及防护结构指标。 |
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Based on the flying survey over the known Cu-Mo polymetallic deposits conducted by the aerogeophysical (electric/magnetic) integrated stations, the author, in accord with the principle of using the data of known deposits to guide the prospecting work of t
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摘要通过航空物探（电、磁）综合站在已知铜钼多金属矿床上的飞行测量结果，根据从已知到未知的原则，建立航空物探（电、磁）综合测量在草原、森林、沼泽区寻找斑岩型铜多金属矿的找矿模式。 |
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Based on the force-method equation, the stiffness matrix and fixed-end nodal displacement and force vector are derived.
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在力法方程的基础上，给出了组合梁单元的刚度矩阵、杆端位移向量及杆端荷载向量并建立了刚度方程。 |
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Based on the forecasting theory of the optimization weighted array, an optimization weighted array model with a runoff response linear model and a time sequential model is developed to predict daily runoff, and the optimal weighting coefficients are deriv
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摘要根据最优加权组合预测原理，建立了径流响应綫性模型和时间序列模型的优化加权组合模型，以预测日径流，依据最小二乘法原理确定其优化加权系数。 |
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Based on the foreign and domestic studies, this paper first reviews the definition and types of assessment, and then analyses the factors which influence the application of formative assessment in the process of college English teaching.
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本文作者在概述形成性评价的定义、模式和现状的基础上探讨了影响大学英语形成性评价实施的有关因素和补救措施。 |
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Based on the formal measurement table applying the 2(superscript nd) pre-test on 351 students and conducting the examination of the credibility and validity to construct the credibility and validity of the measurement table, the coefficient of inner consi
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以正式量表对351位学生进行第二次预试，再进行信度与效度的考验，以建构量表的信效度，本量表各因素的内部一致性系数为.673~.892与隔二周的重测信度为.697～.930，以体育学习表现来验证辨别效度及效标关联效度，以因素分析考验建构效度，所能解释总变异量为59.06%，结果显示本量表具有良好的信效度，确实可以提供国内体育教师了解大学生的体育学习策略。 |
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Based on the formation mechanisms of and erosion and some important research results, this paper reviewed the biological, chemical, and mechanical measures in wind erosion control, which could be applied individually or integrated together to decrease or
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从风蚀的形成机制出发，按性质将控制风蚀的措施分为生物措施、化学措施和机械措施，并简要论述了这些防治风蚀的措施和一些重要结论。 |
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Based on the foundation principles of energy saving and desulfurization, experimental researches on heat transfer and desulfurization of this installation were performed on 81.4KW natural gas boiler experimental rig.
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本文介绍了该装置节能及脱硫的基本原理，利用81.4KW天然气锅炉实验系统对装置的传热和脱硫特性进行了研究。 |
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Based on the fourth-order difference formula of the second derivative term, a fourth-order finite difference method is developed for solving two-points boundary value problem.
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摘要从中心差分公式出发，利用二阶微分的四阶差分公式，对两点边值问题得到了一种四阶精度的差分格式。 |
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Based on the fractal geometry theory, this paper constructed the fractal geometry of road network, and applied the Hausdorff dimension to the overall evaluation of road network.
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摘要基于分形几何学理论，构建了公路网的分维数概念，并将其应用于公路网规划整体性评价。 |
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Based on the fruits of social psychology, this study introduces a new moderate variable self-congruityto interpret adolescents' conformity, non-conformity and counter-conformity consumption behavior.
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本文以我国城市青少年为研究对象，在社会心理学研究成果的基础上引入了一个新的干扰变量－自我一致性，用于解释广泛存在于青少年消费者中的从众、不从众和反从众行为。 |
