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Based on theory of simple harmonic oscillation in physics, this paper presents a novel model for production decline prediction given by deformation of critical damping oscillation equation which is predigested to Arps exponential decline form.

基于物理学中的简谐振动原理，提出了把阻尼振动方程中的临界阻尼振动方程变形得到一种新的产量递减模型，可简化为Arps指数递减形式，经实例计算，可以用来预测油田产量，以此指导油田开发和管理。

They would like crockery and cutlery as wedding presents.

他们想要陶器和餐具作为结婚礼物。

This summary presents a cross section of studies and results from a broad range of clients.

这个总结提出研究和结果的一个横剖面从客户的一个宽广的范围。

The thesis presents a case study of the cross-cultural reception.

本文是比较文学意义上的接受学个案研究。

Christmas won't be Christmas without any presents,'said Jo crossly.

"如果没有礼物，圣诞节就徒有其名，"琼生气地说。

The cooling process involves complex droplet evaporation, strong convective heat and mass transfer, therefore a deep understanding of spray characteristics is essential to optimize the nozzle design and improve the cooling efficiency of the spray. This paper presents a theoretical model to describe the equilibrium evaporation process of a single droplet in cryogen spray.

为了深入了解制冷剂喷雾特性以提高冷却效率、优化喷嘴设计，利用质量传递数法推导传质方程，通过选取合适的阻力系数经验关联式建立了动量方程，考虑液滴蒸发以及与环境气体的对流换热建立了液滴能量方程，初步建立了单个制冷剂液滴平衡蒸发阶段蒸发冷却理论模型。

This thesis presents two approaches for designing chaotic cryptosystem. The cryptosystem combines cryptograph with chaotic synchronization.

本论文提出两种设计混沌密码器的方法，混沌密码器是结合混沌同步的特性及密码学的技术而成。

This paper presents systematic derivation and analysis of the law of Hume-Rothery electronic density using crystallography and quantum theory.

本文应用晶体学和量子力学的观点及理论对合金理论中的重要定律——Hume-Rothery电子浓度定律——进行了系统地推导与分析。

This work presents a viscosity model based on Peng-Robinson cubic equation of state for a better description of viscosity. A viscosity model has been developed based on the similarity between PVTand TμP relationship and the PR EOS.

本文基于P-V-T-与T-μ-P关系的相似性，结合Peng-Robinson立方型状态方程，建立了一个预测纯烷烃气液相粘度的统一模型。

This paper presents the design of the software and hardware of the microcomputer aided DGF5 Peak Inductive Transduser data collecting system,analyzes the important error sources,works out the method of using cubic spline function to modify the system error,and puts forward the relative software.

介绍了用IBM－PC系列微机与DGF－5型电感测微仪构成的数据采集系统的软硬件设计，对系统的主要误差源进行了分析，提出对系统的综合误差用三次样条函数拟合补偿的方法，并设计了相应的软件。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！