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Based on the observation data obtained from 69 sampling sites of different age class forests, and by using biomass expansion factor function, the regression equations of stand biomass and volume of the main forest forests in Pearl River Delta were built,
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摘要利用生物量转换因子连续函数法，通过69组不同龄级的森林样地实测数据，拟合了珠江三角洲主要森林类型的生物量和蓄积量之间的回归方程，并结合3个时段森林清查资料，估算了区域森林生物量及其动态。 |
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Based on the observation data of surface subsidence induced by groundwater exploitation and coal mining in Panji mining area, the mechanism of surface subsidence due to groundwater exploitation and its influence on coal mining subsidence are discussed, an
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根据淮南潘集地区地表沉降和煤矿地表移动观测资料，对抽排水引起地面沉降的机理及其对煤矿开采沉陷的影响进行了探讨，并对进一步深入研究提出了有益的建议. |
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Based on the observation in the context of semi-structured natural play settings, the research analyzes the characteristics of 2-5 aged children's play both quantitatively and qualitatively.
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摘要本研究采用现场观察与录像追踪观察的方法，对2~5岁幼儿在娃娃家、建构区两种游戏背景下发生的游戏行为进行了研究。 |
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Based on the observation made on the main crops such as wheat, corn, cotton etc., the observed data from the limited irrigation test for three years are obtained, and then the test data are analyzed with the theory of soil moisture movement and the model
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摘要通过对小麦、玉米、棉花等主要农作物的分阶段受旱试验，获得了三年的限额灌溉试验观测数据；采用非充分灌溉条件下的土壤水分运动理论分析试验数据，建立了限额灌溉条件下的作物蒸发蒸腾模型。 |
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Based on the observation of the outcrops, we studied the details of the sedimental facies in Ganchaigou Formation, and analysed the variety of sedimental facies, including alluvial-fan facies, braided stream facies, fan-delta facies, lacustrine facies, la
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摘要在野外地质剖面研究的基础上，对柴达木盆地西部古近－新近系干柴沟组进行了详细的沉积相研究，分析了干柴沟组发育的冲积扇、河流、三角洲、扇三角洲、湖泊、湖底扇及风暴沉积等几种沉积相类型。 |
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Based on the observed data and the former research, the ergodic hypothesis is introduced to analyze the process of the reformation in the middle-lower Han river after the construction of Danjiangkou reservoir.
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摘要在实测资料和前人研究的基础上，引入“空代时”假说，分析研究了丹江口建库后汉江下游河流再造床过程的时空演替现象。 |
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Based on the one study of one practical engineering in the zone of littoral plain, the hydrogeologic and engineering geological conditions of the site, and general requirement of prefabricated piles construction in aggressive medium are analysed, detailed
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摘要以滨海平原地带的某工程为例，分析了场地的水文地质工程地质条件及侵蚀介质中预制桩施工的一般要求，研究了侵独介质中预制桩施工的具体措施。 |
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Based on the optimal operation problem of flood control for multi-reservoir such as Jiangya, Zaoshi and Yichongqiao reservoirs on the Lishui river, a hierarchical model for optimal flood dispatching of multi-reservoir system, which includes a flood routin
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摘要以澧水流域中上游的江垭、皂市及宜冲桥三库联合防洪优化调度问题为背景，建立了河道洪水演进方程与离散微分动态规划相结合的水库群防洪优化调度模型，提出了一种离散微分动态规划与马氏京根洪水演进相结合的大系统分解协调算法。 |
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Based on the optimization idea to minimize the maximum value of residual vibration energy over the entire range of parameter variation, a robust time-delayed filter was designed.
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摘要基于残留振荡能量最小的优化思想，在系统参数变化范围内设计鲁棒时滞滤波器。 |
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Based on the organization's objective, set up department goal and coach staff to set up short-term practice plan, review and consolidate the submitted plans in order to ensure the department goal meet the company's targets.
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以公司目标为基础，建立部门的目标，并指导职员建立短期实践计划，回顾并巩固已提交方案，以确保部门目标与公司目标的一致性。 |
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Based on the orientation of Shouyi Culture District, the comprehensive consideration of the spatial relationship among the whole Wuhan City, Wuchang town and the Shouyi Cultural District and the development of traffic, landscape and traveling function of
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依据首义文化区总体定位，在综合考虑武汉市、武昌旧城和首义文化区等不同层次的空间关系和交通、景观、旅游等城市功能协调发展的基础上，各应征机构应提出首义文化区总体规划的设计构思和规划布局，完成蛇山、首义和紫阳湖三大板块的详细规划方案。 |
