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- Two types of novel point source functions, which can be direct employed in construct of solutions for well test analysis, are prese. 应用积分变换方法解析求解两类一维有源和补给边界的不稳定渗流问题,得到两种新的不稳定渗流点源函数,该函数可直接用于构造试井分析的数学模型。
- point source function 点源函数
- A diffuse, pear-shaped image of a point source. 基于一点呈散开的、梨状的一种表现形式
- Consider first a light wave spreading out from a point source. 首先考虑一个点光源发出的光波。
- The definition of PST (point source transmittance) and BRDF (bidirectional reflectance distribution function) is introduced to describe the stray light quantitatively. 通过引入PST和BRDF的定义,实现对杂散光进行定量化描述。
- Functions of fixate point source and model of highway-surface were provided. 给出集中力点源函数,假定了路面模型。
- Rural sewage was an important part of non - point source pollution in China. 摘要农村污水已经是我国非点源污染的重要组成部分。
- The seismic velocity and source function of homogeneously elastic media are inversed jointly by adopting Hybrid GA . 本文使用遗传算法对均匀弹性介质进行波速和震源函数的联合反演。
- Later, the source function for water coning is lower than the infinite surface cylinder source function. 正值(大于零)的源函数不受肤表因子之变化而变化。
- Discussed the achromatic principle of our hybrid acoustic lens system by deducing the point spread function of a point source with a bandwidth through the different imaging system. 利用菲涅耳衍射理论推导出了单频点声源经过单声透镜后的点扩展函数、有一定带宽的点声源经过单声透镜后的点扩展函数,以及有一定带宽的点声源经过我们设计的混合声透镜后的点扩展函数。
- The new source function was used to build a new lithography model based on SPLAT. 在SPLAT的基础上应用新的光源特征函数,建立新的光源模型,并结合测试模板进行仿真。
- Therefore, with source function presented by Gringarten and Ramey, mathematical model of fractured horizontal well is established. 实践证明,压裂水平井对于油藏开采,尤其是低渗透油藏的开发有着重要的经济价值。
- The specific discharge is infinite at the vicinity of every point source or sink. 在每个点源或点汇附近比流量为无穷大。
- The main characteristics of seismic source function in underground explosion are studied by seismological method and numerical method. 摘要结合地震反演方法和数值计算方法,研究了地下爆炸震源函数的特征以及介质特性对震源函数的影响。
- A space in air,water,or soil containing pollutants released from a point source. 含污染质的空气空气、水或土壤中含有从一个点状源释放出的污染物的空间。
- The industry, residential point source along the river and phosphorus mine non-point source are of great water pollution load. 确定库湾周边的工业、生活污染点源,磷矿面源是构成水污染的主要负荷。
- Of or relating to light emitted from a point source and reflected or refracted from a curved surface. 由一个点光源发出并从曲面反射或折射的光的或关于这种光的。
- A space in air, water, or soil containing pollutants released from a point source. 含污染质的空气空气、水或土壤中含有从一个点状源释放出的污染物的空间
- The Electric potential of a conductor ball in the electric current field of a point source is derived. 推证了点源电流场中导电球体内、外的电势分布规律
- The BPT regulations there covered the red meat processing segment of the meat products point source category. “最佳实用技术”规章适用于肉制品的牛羊肉加工。这是一种特种污染源。