稳定性条件

Experimental measurements show that if the vacuum in the gun chamber is better than 6. 67×10-7 Pa and the field emission current is 0. 9μA,the stability of beam current is better than 5% in 10 minutes,and if the acceleration voltage is 40kV,the radius of the virtual source of FEG is smaller than l.

经测量表明：FEG在枪室真空为6.67×10－7Pa，场发射工作电流0.9μA的条件下，其束流稳定性优于5％（10min）；又当加速电压为40kV时，其虚源半径小于1.3nm；而亮度则大于5×109A／cm2·sr。

The Labrador Retriever is a strongly built, medium-sized, short-coupled, dog possessing a sound, athletic, well-balanced conformation that enables it to function as a retrieving gun dog; the substance and soundness to hunt waterfowl or upland game for long hours under difficult conditions; the character and quality to win in the show ring; and the temperament to be a family companion.

拉布拉多寻回犬是一种结构坚固、中等体型、接合较短的狗，他健康、稳定性良好的结构使他能够成为寻回猎物的枪猎犬；他的体质和坚固的结构使他能在艰苦的条件下，长时间从事猎取水鸟或在丘陵地带狩猎这样的工作；特征和品质是他在比赛中获胜的关键；他的气质也适合成为一个家庭伴侣。

To design a good lanthanide luminescent sensor, a unique combination of features must be realized: high selectivity and recognition to lanthanide ions; presence of multiple absorbing groups suitable for energy-transfer ; high thermodynamic stability and kinetic internees.

一个优良的发光器件必须具备以下几个条件：配体对金属离子有较高的选择识别性能；配体含有共轭发色团有利于能量从配体向中心离子转移；配合物具有相对较高的动力学和热力学稳定性。

The interfacial polarization resistances were unvaried during this period,suggested that the SDC modified anode was stable for the direct utilization of octane,and slight degeneration in the performance was associated mainly with the loss of OCV,which was possibly derived from a little carbon deposition within the SDC-coated anode where the level is so low that it almost has no effect to cause severe damage to the anode. The fuel composition and operation conditions had remarkably influence on the cell durability,implied that the stability of the fuel cells could be further improved by varying the iso-octane/O2 ratio and conducting a continuous operation.

燃料组分和测试条件对电池稳定性有着较大影响，说明通过改善O2/iso-octane比例以及维持电池在更长时间内放电能够获得更好的长期输出性能。

The high temperature resistant L-arabinose isomerase which is provided by the invention has higher activity and stability under the higher temperature condition and has broad prospect and economic significance.

本发明提供的耐高温L-阿拉伯糖异构酶在较高温条件下具有较高的活性和稳定性，具有广泛的应用前景和经济意义。

Base on the results of the stress measurement combining the engineering geological condition and the finite element tri-dimensional simulating to elementary study the stability problems of the horizontal and the vertical jambs.

在本文建立的地应力场的基础上，结合工程地质条件，利用有限元三维模拟分析，对水平矿柱与垂直矿柱的稳定性问题进行了初步研究。

Objective The stability of ketamine in biological samples was studied under different storage temperature and time.

目的 研究不同温度和时间条件保存时生物样品中氯胺酮的稳定性。

With this condition,robust stability verification for the systems can be accomplished by testing the feasibility of a set of linear matrix inequalities.

应用此条件，通过测试一组线性矩阵不等式的可解性即可达到判定系统的鲁棒稳定性的目的。

These large structures must be kept in a proper stable condition so as to work normally under complicated circumstances and loadings.

薄壁结构必须具有良好的稳定性，才能保证在各种复杂的环境和载荷条件下正常工作。

The results indicate that CEPNPs are core-shell nanostructure, the particles size is 75 nm on an average; CEPNPs magnetic fluid looks black and viscous and stable, and the viscosity of CEPNPs magnetic fluid decreases with increasing shear rate without magnetic field and increases with the applied magnetic field.

结果表明：制备的CEPNPs具有壳／内核包覆结构，平均粒径在75nm左右；以其制备的磁流体外观呈黑色粘稠状，稳定性好，在无磁场条件下磁流体粘度随转子转速的增大而减小，有外磁场时，磁流体粘度随磁场强度增大而增大。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。