颗粒分析

The parameters of pulse combustor such asfrequency,length of feed tube drying tube effecting on drying property were analyzed.It ispropitious to dry high surface-water containing,small granule or liquid materials.

分析了脉动燃烧器频率、热负荷、干燥管长等参数对干燥性能的影响；发现脉动燃烧器尾管内干燥更适合于含表面水高的小颗粒物料或液体物料，可充分利用脉动气流和声波能的作用，使物料分散雾化，增大表面积，提高干燥效率；研究了脉动燃烧器尾管内干燥颗粒物料的传热特性，并将试验结果与其它类型的干燥器进行了比较。

The process of absorbing pulse laser energy for nanometallic aluminum particles embedded in nitrocellulose thin film and the heat propagation process of hot spot accompanying exothermic chemical reaction are simulated numerically based on thermal decomposition mechanism.

杨延强 哈尔滨工业大学物理系凝聚态科学与技术研究中心，哈尔滨 150001对纳米金属颗粒复合含能材料这一新兴体系的单脉冲激光作用的热动力学过程进行了理论分析。推导了分散在介质中的纳米金属颗粒吸收脉冲激光能量的瞬时功率密度。

The result shows that the movement of the propellant grains is complex and relative to the ignition system very much. Guns with center tube ignition and flame-spreading system can alleviate the accumulation of the propellant effectively, and will have better performance.

结果分析表明：火炮点火后膛内火药颗粒的运动情况十分复杂，其运动规律与点传火的方式密切相关，点火孔均匀分布的中心传火管点火方式可以有效的改善发射过程中火药颗粒在弹丸底部堆积的现象，获得更佳的发射效果。

On the basis of the masteries for the aluminum oxide ore pulp drying and calcination, a mathematical model was developed for simulating the process of heat transfer and the calcination of two-phase flow in a new type furnace designed by Zhongzhou Branch Company, China Aluminium Corporation Limited. The fields of velocity, temperature and pressure of the two-phase flow and the reaction time were gained by optimizing calculation under the condition of different operational parameters and geometric parameters. The effect of vent position velocity and atomization particle diameter on the drying and calcination technology of aluminum oxide ore pulp was discussed.

在了解氧化铝矿浆干燥、烧成工艺及设备的基础上，针对中国铝业股份有限公司中州分公司开发的一种新的氧化铝矿浆干燥和烧成炉，建立了矿浆干燥、烧成炉内气固两相流的流动传热以及烧成过程的数学模型，就干燥、烧成炉运行参数及各几何参数进行优化计算，得出了炉内气固两相流动的速度场、温度场、压力场以及颗粒干燥和烧成反应时间，并分析讨论了喷口位置、喷口速度、颗粒雾化粒径等参数对氧化铝矿浆干燥、烧成工艺的影响。

With the aid of the (Charge- Coupled Device) CCD camera to acquire the digital informations for erect section of specimens, then utilizing the compacting parameters of compaction particle principal axis direction , asphalt mastics film thickness and particle area ratio etc.

针对沥青混合料试件压实成型方式不同因而内部结构各异的情况，采用图像数字处理技术，借助于CCD相机获取试件立断面的数字化信息，提出利用颗粒主轴方向、沥青砂胶膜厚及颗粒面积比等压实参数，直观、快速而准确地评价不同成型方法的压实效果，在此基础上，选择了马歇尔击实、轮碾压实、振动压实和旋转压实四种方法进行研究，并对比分析了实际路面结构。

In this paper, shearing machine and hammer grinder were combined to pulverize the waste boards, the metal and nonmetal on the PCBs and PWBs can be liberated availably, Then a roll-type corona-electrostatic high-voltage separator are applied to separate the metal and nonmetal, at the same time, A electrostatic separators/sizers is used to separate the mixed metals.

因此，本文采用剪切式旋转破碎机和冲击式旋转磨碎机进行两级破碎，达到金属-非金属充分解离的程度，然后应用辊式电晕-静电复合电场高压电选机，对已破碎的废弃电路板进行金属颗粒与非金属颗粒分选，同时对金属之间的分选进行理论分析和实验研究。

The article analyzes several factors influenced the compaction effect of gravel pebble mixture,and mainly analyzes the influence on the gradation of grain,compaction function,grain breakage and material unevenness,in order to ensure service life and service quality of highways.

对砂砾卵石混合料压实效果的若干影响因素进行了深入剖析，尤其是对颗粒级配、压实功能、颗粒破碎和材料不均匀的影响进行了重点分析，以保证公路的使用寿命及其服务质量。

After particle distribution analysis and test of penetration of oil perforation to steel target,the influence of particles arrangement and distribution of powder shaped charge liner on performance of jet was studied and the liner was treated by thermal treatment.

利用筛分法，将127型石油射孔弹药型罩中的铜粉进行颗粒分级，并与其他金属粉进行粒度级配，通过粒度分布分析及射孔弹侵彻钢靶试验，研究了粉末药型罩中金属颗粒的粒度级配及分布对聚能射流性能的影响，同时对药型罩进行了热处理研究。

The requirements for lasers,optical setups,recording ma terials and chemical processing to make large-format holograms of great scenes are discussed.A model of Suzhou Industrial Park measuring 160×180cm,and other large models were recorded using an argon ion laser with an etalon on self-prep ared ultra-fine-grain silver halide plates(average grain size:20nm).Large-for mat transmission holograms (size:50×40cm) of high diffraction efficiency and lo w noise level were obtained with proper exposure and chemical processing.

分析了制作大幅面大场景激光再现全息图对激光器及光路布置、记录介质、化学处理等方面的特殊要求，用自制的颗粒平均尺寸为20nm的超细颗粒卤化银全息干板及带标准具的氩离子激光器，对场景面积达160×180cm的苏州工业园区等模型作全息记录，经适当曝光和化学处理，制得了幅面达50×40cm，且具有较高衍射效率和较低噪声的透射全息图。

To the gradations with the same maximum nominal grain size,grey correlation was used to analyze the results. The conclusion showed that,except the 9.5 mm-maimum-nominal-grain-size gradation,Jf was influenced mostly by the subtotal triage of coarse aggregates in the third large sieve pore.

对于颗粒最大标称粒径相同的级配，使用灰色关联分析，得出结论：除颗粒最大标称粒径为9.5 mm级配外，Jf受级配中第3大筛孔分计筛余百分率影响最大。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。