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Based on the gas flow model in gas reservoir and the fluid flow model in horizontal well, a couple model is developed and used for numerical computing study of single flow performance in horizontal borehole.
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摘要根据气藏内气体的流动模型和水平井井筒内流体的流动模型，建立了耦合模型，通过该耦合模型对气藏中的水平井井筒内单相流动特性进行了数值计算研究。 |
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Based on the gas flowrate method, a new one was developed to measure outgassing rate, which can be used not only at room/high temperature but also at low temperature even down to about 100K.
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开发了一种基于气体流量法的新法，不仅可以用于常温和较高温度，而且可以用于材料在低温环境下放气的测试，最低测试温度可以达到100K左右。 |
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Based on the general principles of the theory of case grammar, this paper mainly studies the weakening of case marking in Japanese.
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摘要本文运用格语法理论的一般规律和法则围绕日语格标识弱化现象进行了重点考察。 |
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Based on the general uncalibrated visual servoing algorithm, this paper presents a new visual servoing control scheme which estimates pseudo-inverse of image Jacobian matrix based on recursive least square algorithm.
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摘要在一般无标定视觉伺服算法的基础上，提出了一种基于递推最小二乘法估计图像雅可比矩阵伪逆的无标定视觉伺服算法。 |
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Based on the generalized potential variational principle of nonlinear elasticity theory with large deflection, the incomplete generalized potential energy functional with large deflection is established on the space coupling free vibration of collaborated
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摘要基于大位移非线性弹性理论的广义变分原理，考虑加劲梁轴向压缩应变能和剪切应变能的影响，建立了协作体系斜拉桥空间耦合自由振动的大位移不完全广义势能泛函，通过约束变分导出了协作体系斜拉桥的加劲主梁竖向挠曲振动微分方程。 |
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Based on the geological background of different altitude, the mountain shows vertically zoned characters, such as the distribution of soil, the diversity of biology, and the difference of karst dynamic systems.
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通过研究发现，金佛山在不同海拔地质背景基础上，土壤、物种多样性和山上山下两种不同特征的岩溶动力系统。 |
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Based on the geological,hydrogeological and hydrochemical information,the genesis of the underground hot water in Qi County of Shanxi has been analyzed.It is concluded that the formation of underground hot water is related to the magmatic activity in Yans
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从地质、水文地质、水化学等方面，分析了祁县地区地下热水成因，得出该地区地下热水形成与燕山期岩浆活动、新构造运动形成的基底断块隆起及地下水循环深度大、交替迅速有关。 |
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Based on the given securities combination model and the justified general principle of the invertible matrix, the analyze expression formula of securities investment combination right counting was deduced and justified with the examples.
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摘要给出了证券组合模型，在其使对称矩阵与对角矩阵合同的可逆阵的一般规律基础上，推导出证券投资组合给合权数的解析表达式，并给出实例验证。 |
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Based on the global platform of Shanghai International Automobile City.
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依托上海国际汽车城国际平台。 |
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Based on the global stochastic searching method of classic genetic algorithm (GA), and using the diversity preservation strategy of antibodies in biology immunity mechanism, the method greatly improves the colony diversity of GA and has better global sear
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该算法在传统遗传算法全局随机搜索的基础上，借鉴了生物免疫机制中抗体的多样性保持策略，改善了遗传算法的群体多样性，具有更好的全局搜索能力。 |
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Based on the grey-forecasting model with unfixed parameter, the primary model was ameliorated through optimized analysis on the non-equidistant sequence to improve its fining and forecasting accuracy especially when there are only few experimental data.
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摘要针对变参数灰色模型在实验数据少时误差较大的问题，提出了对非等间距序列优化的方法，使原来模型得到改进，从而提高了模型的拟合和预测精度，拓宽了应用范围。 |
