为模拟自然界中既包含竞争关系又包含捕食-被捕食关系的生态系统，建立用常微分方程组表示的环状模型。
An annular model for chemostat was depicted by a group of ODE(ordinary differential equation) to imitate the ecosystem which included competition and predator-prey relations in nature.
建立了恒热流边界条件下矩形微通道中环状冷凝过程的三维模型。
A three dimensional model in rectangular microchannels with constant heat flux was developed to predict the steady annular condensation.
该模型认为环状流区域同时存在强制对流与核态沸腾两种换热方式。
The model assumes that forced convection and nucleate boiling coexist in the annular flow regime.
本文提出了微圆管内环状流凝结换热的分析模型，考虑了重力、汽液界面剪切力、表面张力以及界面凝结热阻的作用。
Considering gravity, interfacial shear stress, surface tension and interfacial thermal resistance, the analysis model for annular flow condensation heat transfer in microtube was presented.
本文采用双组分环状二相流模型对吸收-扩散式制冷系统蒸发器的传热进行了分析计算。
In this article the analytical calculation has been made for the evaporator heat transfer in absorption-diffusion refrigeration system with the annular two-phase two-component heat transfer model.
在MSR框架结构下定义了密码协议的秘密性和认证性。3改进了协议模型和攻击者模型，主要解决了攻击者模型中出现的无限循环状态。
Under the MSR framework, the definitions about secrecy and authentication are proposed3 Protocol model and intruder model is improved to solve the infinite state of intruder model.
建立了环状管网水力工况的数学模型，给出限额供热的压头校核公式。
The mathematical model of hydraulic regime of ring-shaped heat-supply network is established, and the pressure head check formula for quota heating is given.
针对等离子体对激光的导引和离焦现象，以及应用激光操纵粒子的空心环状光束产生进行了模型化分析和讨论。
Using different refractive index distributions, the phenomena of plasma waveguide and the application of a ring shaped beam in the manipulation of particles are discussed, separately.
在QCD弦模型的基础上，基于弦和化学键的相似性，提出了四夸克态的环状颜色结构和QCD同分异构体的概念。
QCD isomeric compounds and a tetra-quark state with the square-like color structure based on a color string model and the similarity between string and chemical bond are proposed and studied.
本文随后提出了一种适合于无线传感器网络中异常事件监测应用的环状空间相关性模型。
This paper proposes a circular spatial correlation model, which is more suitable for the application of WSN in anomaly detection.
模型是建立在压力能量消耗率最小的原理上的，其基本原理是：在气-液两相流的流型中，环状流具有相当稳定的流动状态。
Its basic principle is that there is a quite steady flow state of annular flow in the flow pattern of gas-liquid two-phase flow.
计算结果表明，神经网络模型能够准确预测桨叶负扭度对直升机涡环状态的影响。
The result shows that the model of neural network can predict the effect of blade negative-twist on helicopter vortex-ring state.
后来人们又提出了“精细环状”势模型，而它的可调参数太多，不便于对量子环理论研究的进行。
Afterward, the fine circular potential model is put forward, but carrying through theoretical analysis of quantum rings under this model is inconvenient because it has too many parameters.
根据优化原则，建立了环状给水管网流量优化分配的数学模型。
Based on optimal principle, a new mathematical model for flow distribution of looped network was put forward.
通过模型旋翼试验得到了合理的直升机涡环边界判据，并由此计算得到了直升机通用涡环状态边界。
A reasonable criterion of vortex ring state boundary for helicopter is acquired based on model rotor tests.
通过模型旋翼试验得到了合理的直升机涡环边界判据，并由此计算得到了直升机通用涡环状态边界。
A reasonable criterion of vortex ring state boundary for helicopter is acquired based on model rotor tests.
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