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The phase equilibrium relationship and the equilibrium composition of conjugate phases in Ag--Ti system were determined by means of metallographic microscope and electron probe microanalysis. Especially for the liquid phase the B phase and the intermediated phase.

通过金相观察和电子探针微区分析，对退火处理后的试样进行相分析和成分测定，从而获得了相应温度下的Ag--Ti二元体系的相平衡关系和共轭平衡成分。

The results show that Mg segregates to the phase bounda-ries of MC/γand γ′/γ. The thickness of Mg on MC/γ phase boundaries is latgerthan that on γ′/γ phase boundaries. The results prove that Mg is not only a grainboundary segregation element, but also a phase boundary searegation one.

结果表明，微量Mg偏析于MC和γ′相界面，而在其内部没有富集；Mg在MC相界面上的偏析厚度大于在γ′相界面的偏析厚度；试验结果及理论分析表明，Mg不仅是晶界偏析元素，更重要的是相界偏析元素。

In applying high concentration burning technique to improving burning efficiency for pulverized coal burner, for studying the effect of solid flows of different concentration on burning, Euler mathematical model is set up using gas-solid two phase flow theory. The paper describes the low concentration pulverized coal in horizontal primary air pipe. The relationship between the velocity and concentration of gas phase and that of solid phase, and the effect of gas flow velocity on gas-solid two-phase flows, is arrived through calculating the flow field. Reasonable gas flow velocity is proposed.

在应用高浓度燃烧技术提高煤粉炉的燃烧效率时，为了研究不同浓度固相流动对燃烧的影响，应用气固两相流理论建立Euler数学模型对一次风水平管道中低浓度的煤粉颗粒进行了描述，通过求解流场，得到了管内气相和固相的速度和浓度的分布关系，及其气体流速对气固两相流动的影响，并提出合理气流速度。

This problem is also important and valuable in Nonlinear Optics. It will be very helpful to understand how the aberrations affect the course of three- wave mixing, such as the change of conversion efficiency, the distribution of intensity and phase.Small signal solution of aberrated second harmonic generation is deduced from three-dimension three wave coupling functions. The numerical work gives out lot of results of different aberrations. The effects of the fundamental waves aberrations, which will change the conversion efficiency, distribution of intensity and phase in the frequency conversion, is analyzed. It shows that when walk-off and diffraction effects could be ignored approximately estimation of the phase distribution of second-harmonic wave could be done. The far field divergent angle and second moment radius of harmonic wave will vary with the aberration of fundamental wave, but the far field divergent angle will be obviously smaller than that of fundamental wave. The phase distribution of both fundamental and harmonic wave is measured using Hartmann-Shack wave front sensor in the experiment with 1064nm and 790nm lasers, respectively. Results are given.

首次从三维三波相互作用方程组推导得到了位相畸变光束倍频的小信号解；通过建立国防科学技术人学研究生院学位论文三维数值模型，编写相应仿真程序，首次得到了位相畸变光束倍频过程的大量计算结果，深入细致地研究了位相畸变光束经非线性光学频率变换后谐波的转换效率、光强分布、位相分布以及影响它们的各种因素；得出谐波的远场发散角和光斑二阶矩的变化规律会因为基波像差的不同而不同，但谐波的远场发散角明显地比相应基波的小的结论；得到了在走离效应和衍射效应等影响许多因素可以忽略的情况下，位相畸变传递到二次谐波的估算式；举例分析了KDP三倍频方案中，基波位相畸变对二次谐波和三次谐波的影响；实验工作中，用哈特曼一夏克传感器分别对IO64nm倍频过程和790飞秒超短脉冲倍频过程中的基波和谐波的位相分布进行了测量，给出了相应结果。

It is found that the microstructure of alloy is consisted of two phases, a main phase of V based solid solution phase, and the second phase of Laves phase. The alloy has remarkable hydrogen storage properties at room temperature and 353 K, the maximum hydrogen desorbing capacities are 3.11 wt% and 2.31 wt%, respectively.

研究发现：该合金为两相结构，主相为V基固溶体，第二相为Laves相；在室温和353 K时合金的放氢PCT曲线上有明显的压力平台，最大放氢量分别为3.11%和2.31%。

This article puts in detail the meaning of the whole process of cost and impact on the cost of five main phases - the investment decision-making stage, the design stage, the stage of the contracts, the construction phase, the phase of the completion of the current situation in the country and specific method of cost control in detail on Put forward in China's bridge construction cost control should be the focus of the investment decision-making phase of the design phase and transfer.

摘要本文抛砖引玉，详细论述了全过程造价的含义，并对影响造价的五大主要阶段-投资决策阶段、设计阶段、承发包阶段、施工阶段、竣工阶段在国内的现状和具体造价控制方法进行了详细阐述，提出在我国桥梁工程造价控制的重点应该向投资决策阶段和设计阶段转移。

Corresponding to the phase inversion point, a sharp peak in pressure gradient also appears at some gas and liquid superficial velocities. It is found that the input water cut of the phase inversion point for three phase flow which is around 40%, is obviously lower than that for two phase flow, which is around 60%.

采用互相关技术分流型研究了油-气-水三相分层流和环状流界面波速特性，结果表明：固定油水比时，SW‖ST流型气-油界面和油-水界面波速、AN‖DO/W流型和AN‖DW/O流型的气液界面波速均随折算气速和折算液速的增大而增大。

Through theoretical analysis and calculation current change relations of three common open-phase of a three-phase asynchonous motor are derived in the paper and discusses protective action of bimetallic trip thermorelay in open-phase running of three-phase asynchronous motor according to its basis.

通过理论分析和计算，推导出了三相异步电动机三种常见断相形式的电流变化关系，并以此为依据对双金属片式热继电器在三相异步电动机的断相运行中的保护作用给予评述。

In order to study the phase splitting characteristic of the gas-liquid two-phase mixture leaking out from a small break on the pipe wall, a special leaking experimental device was set up, and with an air-water two-phase flow loop, the experiments studying the phase splitting of leakage leaking through the break were carried out.

为研究气液两相流体通过破口泄漏时的相分离规律，设计了新型泄漏测量装置，在空气－水两相流实验环道上开展了实验研究。

As a first step to industrialize this focusing coal liquefaction technology, it is essential to study the multiphase transport characteristics of this new type reactor. In this paper, mass transfer and mixing characteristics of a three-phase continuous loop reactor with a concentric draft tube were measured by the dynamic dissolved oxygen and saturated KCl solution pulse trace methods,with glass beads as solid phase, air as gas phase and tap water as liquid phase, respectively.

本文在同心内置Φ 0.14×1.5m导流筒的Φ 0.2×2.5m有机玻璃环流反应器中，以空气和水为气、液相，玻璃珠为固相，分别利用动态溶氧法与饱和KCl脉冲示踪法测量了液相体积传质系数和轴向分散系数，考察了表观气速、进料浆速、固含率、固相颗粒直径、液相表面张力以及操作方式对上述两个传递参数的影响规律，并将实验结果关联为量纲为1关联式；同时，根据环流反应器的结构特点，建立了传质系数分区模型和轴向分散系数分区模型且分别获得了解析解，对床层传质和混合的不均匀性做了理论分析。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。