查询词典 diphase

The article covers the full research on such aspects as mathematic description, numerical analysis method and their practical applications. The diphase heating surface is divided into a hot water section, a evaporation section and a micro overheat section , the problems of model switching are avoided successfully between subcritical and supercritical working condition in the model of The diphase heating surface, and the model can be used for between subcritical and supercritical working condition without causing the model stiff infinity prick up problem. The mathematical model and dynamic characteristic account is unified and predigested for the diphase heating surface of once—through boiler under subcritical and supercritical pressure, and propose that the working conditions at phase change point could be used as divide criterion between water region and steam region under supercritical pressure, the problems are solved successfully between water and steam phase change point under supercritical pressure.

本文在过程的数学描述、数值分析以及实际应用等方面进行了系统的研究分析，将双相受热面统一划分为热水段、蒸发段和微过热段三段，所建立的双相受热面模型不但成功地避免了超临界工况与亚临界工况间的模型切换，而且消除了由区段划分欠妥所引起的模型刚性无限加剧的问题，统一并简化了超临界及亚临界压力下直流锅炉双相区段的数学模型和动态特性计算，而且提出了利用相变点工况作为超临界压力下划分汽水区域的标准，解决了超临界压力下水与蒸汽的相变点问题。

Secondly,the phase separation mechanism,phase evolution and mechanical properties of toughener/BMI diphase system were investigated to prepare for toughening composite with Ex-situ technique.

其次，针对离位增韧中增韧剂与BMI树脂之间的相分离行为，研究了增韧剂与BMI树脂的反应诱导相分离机理、相形貌演化和力学性能。

The responses of respiration to hypoxia is diphase,that is respiratory excitatory at first,then respiratory depression.

已有研究证明，不论在新生动物，还是在成年动物，呼吸对缺氧的反应都是双相的，即先兴奋后抑制。

In addition, we also discussed the effect of the granularities of the powders and the added phases on the mechanical properties of the alumina-based diphase ceramics.

另外本文还讨论了原料粉末的起始粒度和添加相对氧化铝基复相陶瓷的影响。

There is an important theoretical and practical sense in testing the diphase relative permeability curve of the equilibrium of oil and gas under the conditions of high temperature and pressure.

相渗曲线是描述油气藏渗流中一个非常重要的参数，标准的测定方法是在室温低压下采用模拟油模拟气来进行测试，未考虑地下高温高压及平衡油气渗流的实际情况。

There were many researches on Al2O3-based diphase ceramics, but few of them focused on the methods of the fracture toughness measurement of alumina-based diphase ceramics.

见于报道的Al_2O_3基复相陶瓷的研究虽多，但是关注于氧化铝基复相陶瓷断裂韧性测试方法上的研究却并不多见。

Monte Carlo-finite element method ; diphase composite ; effective dielectric constants

蒙特卡洛有限元法；复合介质；等效介电常数

The results indicate that a reather large creep appears in the diphase ceramics containing titaniferous compound , TT,TTT,and TTS, under the load of 156 MPa at 1100℃.

结果表明，含钛复相陶瓷TT，TTT及TTS在1100℃进均出现较大的蠕变。

Effective dielectric constants of diphase composite are simulated by Monte Carlo - finite element method on square lattice in two - dimension. Logarithmic mixing rule, Wakino's equation, Maxwell - Wagner's equation and general effective medium equation are used to fit the computed data.

采用蒙特卡洛有限元法，在二维正方形格子上模拟计算了两相复合介质的等效介电常数，并用对数混合方程、Wakino方程、Maxwell-wagner方程和通用有效介质方程对模拟数据进行了拟合。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

I'll try to bring the conversation around to the subject of money.

我想把谈话引到钱的问题上。

Only from a superior source of goats can an exceptional chevon product be made.

羊源 有优良的羊源才能生产出好品质的羊肉。