压下的

As compared with the pressure of carrier gas, the subatmospheric pressure is more favourable condition to atomize the hydride, so the atomization temperature was lower (about 650℃).

由於硒化氢的原子化是在负压下完成的，它将比常压或载气压力下更有利於氢化物的原子化，因而使硒化氢原子化的最佳温度降低。

In order to obtain the best synthesis temperature of cordierite by the method of direct sintering, samples were synthesized with pressed raw blocks respectively at controlled temperatures of 1310℃,1350℃ and 1400℃.

为了研究采用直接烧结法合成堇青石的最佳合成温度，对压成的生料块分别在最高合成温度为1300℃，1350℃，1400℃下进行合成，通过对比不同合成温度下得到的样品X射线衍射图，确定出采用直接烧结法合成堇青石的最佳合成温度。

The interior sound pressure levels and exterior sound pressure levels of the complex box structure excited by an exterior point load are measured, and a good agreement between the theoretical results and the test results shows that the theoretical method and corresponding results are correct.

通过对几种具有理论解的结构辐射声场的分析，验证了本文理论的正确性，研究表明本文方法具有很高的精度；同时对复杂箱形结构进行了实验验证，在实验室条件下测量了复杂箱形结构在外部点载荷激励下的内、外部辐射声压级，与理论预估值比较表明，二者具有良好的一致性，进一步证实本文所建立的理论预估方法是有效的。

By combination of the finite differential technique with the upper bound elemental technique, simulation for the technology of extrusion directly following liquid infiltration which involves infiltration, solidification, and large plastic deformation in one process has been realized and the essences of various technical processes have been revealed by their corresponding simulation results showing the variation of the infiltrated depth and the temperature field with time during infiltration, the punch position, the solidification development of the matrix alloy, the state of the composite within the deforming zone, and the forming load required at different times during extrusion.

采用有限差分法和上限元法相结合，对融浸渗、凝固和大塑性变形为一体的液态浸渗后直接挤压工艺过程进行了数值模拟，从浸渗时浸渗深度与坯料温度场随时间的变化以及挤压过程不同时刻的冲头压下位置、坯料凝固情况、变形区坯料状态、成形载荷大小等方面揭示了不同工艺条件下的各种挤压过程的实质。

In the paper, the present state of ultra-fine-grained materials, severe plastic deformation and Asymmetrical-ARB are introduced in detail; the craft to fabricate ultra-fine-grained copper using Asymmetrical -ARB is studied fully; the problem of combination of interface is settled; the affect of homogenizing annealing、 annealing and rolling method on mechanical properties of materials prepared by Asymmetrical-ARB is discussed and analyzed when control parameters of rolling mill such as the press—ratio、 the asynchronous rate、 rolling—speed are fixed, and a kind of craft that meets to requirement of experiment is made out.

本文对超细晶、大塑性变形技术、异步轧制目前国内外研究进行了详细的介绍；对异步叠轧方法制备超细晶铜工艺做了较为细致的研究：解决界面复合问题；在压下率、异步比、轧制速度等轧机控制参数固定条件下，探讨了均匀化退火工艺、去应力退火工艺和轧制方式对异步叠轧材料力学性能的影响，并进行了分析，制定出符合实验要求的轧制工艺。

Based on the theoretical and testing reseaches on the concrete anticrack property of the Qi-Nen-Bridage box beam web under the partical partical of the prestressing large tonage anchorage, this paper points out that the concrete crack resistance of the web does not meet the code.

本文对齐嫩桥连续预应力混凝土箱梁腹板在大吨位锚头作用下的混凝土局部承压抗裂性的设计进行试验研究、验证工作，指出了腹板在锚下混凝土局压抗裂性能与理论分析的一致性，证明了原设计的抗裂度不能满足规范要求，为保证工程的可靠性提供了修改设计的依据

A series of P-T tests in field and model bin were carried out,through controlling initial pressure upper limit P and gastight degree,The results showed that gastightness not only relates to airtight degree,structure material and technological quality,but also relate to pressure upper limit,temperature and so on.

文章通过控制初始压力上限P和气密程度，进行了一系列P -T试验，对室内模拟仓和实仓进行测试，通过试验和对实验结果数据的处理分析，发现气密性不仅与环境密闭程度、结构材料及工艺质量有关，而且与测压上限及温度等环境条件有关；并且，在相同气密条件下，容器不同初始压力下的半衰期之间存在很好的线性相关性。

The pseudo-static test which subjects to horizontal load on the A-type autoclaved aerated concrete block wall was adopted. Reinforced concrete beams were set up at the upper and lower ends of the test block, and the four-bar linkage device was provided to ensure that the top of the wall was only in translatory motion, not in rotation at the level force. Hydraulic synchronous loading device was adopted to simulate the vertical load which was produced by the wall of the housing interlayer.

对A类蒸压加气混凝土砌块墙体采用水平荷载作用下的伪静力试验，试件的上下两端设置了钢筋混凝土梁，通过四连杆装置保证墙体顶部在水平力作用下只有平动而无转动，并采用同步液压加载装置模拟房屋层间墙体作用的竖向荷载。

By regression of experimental data, therules of the linkage between these factors, which will provide a theoretical basis for designing BBP with different scales.3 Using thermal analysis technology and dynamic thermogravimetry, the paper studies combustion kinetic characteristics of 3 types of agricultural crops at different rate of temperature rise, and thus, achieved dynamic parameters of these fuels at different rate of temperature, established dynamic model of straw combustion, which reflects the dynamic process in the fast combustion area.4 Characteristics of straw briquette combustion was experimented, focusing on the impact of straw type, temperature, air supply, and density, diameter, and weight of briquette on the combustion speed, and the following conclusions were drawn:(1) combustion of straw briquette fuel is static permeation diffusion combustion;(2) temperature has a larger impact on the speed of straw briquette combustion than air supply; the higher the combustion temperature is, the faster volatilizable component separates out, and the less steady the combustion is;(3) density of briquette fuel has impact on the speed of volatilizable component separation and therefore the combustion speed;(4) increase of diameter and weight of briquette fuel increases the average combustion speed in the initial stage, and that in the later stages is comparatively steady;(5) the proportion of volatilizable component in straw briquette fuel is high, therefore, the temperature control during combustion under the rational ventilation condition is essential to ensure its safe combustion.5 Using the above-mentioned results of experiments and theoretical analysis, and based on thought of hydraulic driven and bi-direction compression, the hydraulic system and compression parts of the HBP BBP are re-designed in terms of industrialization.

利用热分析技术，采用动态热重实验法，对我国的三大农作物秸秆在不同升温速率下的燃烧动力学特性进行了较系统的研究。得到了各原料在不同升温速率下的动力学参数；建立了秸秆燃烧的动力学模型，该模型反映了秸秆迅速燃烧区的动力学过程。 4 对秸秆成型燃料的燃烧特性进行了试验研究。着重研究了秸秆河南农业大学博士学位论文巫的种类、温度、空气供给量、成型燃料密度、直径、质量对成型燃料燃烧速度的影响并得出如下主要结论：①秸秆成型燃料的燃烧方式属于静态渗透式扩散燃烧。②秸秆成型燃料燃烧速度受温度的影响大于通风量燃烧速度的影响：燃烧温度越高，挥发分析出速度越快，燃烧平稳性愈差。③成型燃料密度影响成型燃料挥发分的析出速度，影响燃烧速度。④成型燃料直径和质量的增加，使得燃烧初期的平均燃烧速度增大，中后期的平均燃烧速度相对平稳。⑤秸秆成型燃料含挥发分比例高，因此合理配风下的控温燃烧是保证其完全燃烧的关键。 5运用已取得的试验和理论分析结果，以液压驱动、双向成型为基础，从产业化的角度对HBP型成型机进行了液压系统和成型部件的改进设计；同时采用了二级预压机构，使该成型机的生产率达到 500kg.hd；单位能耗 60kwh。上'左右，磨损件修复周期 300小时左右，基本解决了影响生物质固化技术在国内推广的技术难题。

In order to solve the poor load capacity of oil film bearings during the start-up process of tandem cold rolling mills, based on the hydrostatic bearing theory, a load bearing capacity model for oil film was established. The influences of screw-down tilting, hydraulic pump power and restrictor's hydraulic resistance on the hydrostatic pressure bearing-spindle system were calculated.

针对某CVC带钢冷连轧机启动阶段支持辊油膜轴承静压承载能力不足的问题，应用流体润滑理论，建立了轴承倾斜工作下静压承载能力的全润滑系计算模型，分析了轧机压下倾斜、油泵功率和节流器液阻对轴承静压承载性能的影响。

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。