查询词典 single phase

Firstly, this paper reviews the development history of the methods of fault line selection for single phase to earth fault in networks with ungrounded neutral in China and other countries.

回顾了国内外小接地电流系统单相接地故障选线方法发展的历史，对现有的各种选线原理和方案做了系统的归纳，提出了尚需解决的问题，并给出了分析的结论。

China's first single-phase watt-hour meter, the first red flag car dashboard was born in the factory.

我国第一只单相电度表、第一台红旗轿车仪表都在该厂诞生。

China's first single-phase watt-hour meter, the first red flag cars instrument in the birth of the plant.

我国第一只单相电度表、第一台红旗轿车仪表都在该厂诞生。

But in practical application, the results of calculation usually have a greater difference from reality, which are mainly the following several points: it is thought that single-phase to flow for fluid in the formula, and multiphase flow exists actually; also the impact of the pressure drop in horizontal section and the wellhole completion forms on the deliverability are not included, as well as the bottom water coning is a complex question affecting well deliverability.

但在实际应用中，计算结果与实际往往存在较大的差别，其原因是：公式推导中假设流体流动是单相流动，而实际地层往往是油水两相流动；公式中没有考虑水平井筒内压降的影响；不同的完井方式所对应的表皮系数不同，对产能影响也较大。

C and keeping time of 4 h, aiming to improve the total electrical conductivity of single phase barium zirconate.

但是，当ZnO在SZY_(10)中的添加量达到6 mol%时，材料的离子传导系数急剧下降。

Single phase mullite were prepared by using mechanochemical method with kaolinite and alumium hydroxide as starting materials.

以高岭土和氢氧化铝为原料，采用机械力化学法制备出了单向莫来石。

Thealmost single phase can be obtained in RFe1.95 under suitablegrowth conditions.Any deviation from these growth conditions andcomposition results in the apparence of intergrain rare earth phaseor intragrain RFe3 or WSP deposition.

工艺研究发现，在合适的提拉条件下，RFe1.95的成份可以得到近似单相的结构，成份的偏离将导致晶体中出现晶间稀土相或晶内的RFe3或WSP淀积。

In view of this, a new single phase PFC circuit which uses the Bridgeless PFC power module and partial PFC control method is presented.

但是由于该PFC电路采用不可控整流桥，使用的功率器件数量较多，导致功率损耗较大，且使用的PFC升压电感较昂贵，因此具有效率较低和成本较高等不足。

It points out that it must use unsaturated soil theory to consider the stabilization of construction established on loess and dilative soil subgrade. It uses single-phase flow theory and neglects the effect of porous air to describe the flow in unsaturated soil. The saturation of water and pore water pressure are taken as state variables, the effective stress and water flow velocity are expressed using these variables.

对于非饱和渗流孔隙水压力-位移耦合分析问题，本文采用单相流理论，忽略孔隙气压力的变化及其对土体变形的影响，以孔隙水饱和度和孔隙水压力作为状态变量，给出了非饱和土的应力状态表达式、渗流特性，建立了非饱和流孔隙水压力-位移耦合分析的有限元程式。

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。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。