中空

In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据；观察了各种强度质点增强复合材料的铸态和时效态微观组织，分析其微观结构形成的金属学条件及稳定性机理，研究了其时效析出规律和时效机制，发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征，并解释了其形成机理；利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制，揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献；研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为，并对其进行了稀土界面层设计与制备，改善了颗粒与铝合金之间的界面润湿性，降低了复合材料铸造渗透压力，提高了复合材料的强、韧性；研究了多种复合材料界面结构及形成机理，确定了增强体与基体之间的界面结合机制，分析了复合材料界面处的晶体学位向关系；最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料，得到了强度和阻尼综合性能较好的轻质复合材料。

It is found that degree of ring formation, concentration of alkaline solution, time of alkaline treatment have great effects on the mechanical properties of porous hollow gel fibers; the alkali treatment of porous oxidation fiber is easier than solid oxidation fibers.

发现环化程度和碱溶液浓度、碱处理时间对多孔中空凝胶纤维的拉伸行为和力学性能有较大的影响。

This test uses the "method of fire resistance test for structural parts of building" of Chinese national standard CNS12514 A 3305 as the criterion and small heating furnaces to complete the following three kinds of tests:(1) different material ingredients of single layer fire curtain ,(2) different hollow layer spacing of double layer fire curtain, and (3) installation of natural smoke vent of double layer fire curtain, with a view to acquiring basic data of insulation performance and determining if it meets the requirements stipulated by related specifications.

本试验将以中国国家标准CNS12514 A3305「建筑物构造部份之耐火试验法」作标准，并利用小型加热炉完成(1)单层截火幕不同材质成份、(2)双层截火幕不同中空层间距、(3)双层截火幕设置自然排烟口之三种试验类型，以期获得阻热性能之基础资料与是否符合相关规范之要求。

The floor cleaning slipper capable of being filled with liquid agent includes one vamp and one sole, and the sole includes one bottom cushion, one sole wall to form a holding space, one cleaning body around the holding space and at least ojne filling hole structure, comprising one hollow nail and one buckling ring in the sole wall.

本发明是有关一种可填充液剂的擦拭鞋，其具有一鞋底与一鞋面，该鞋底大致包括一中底垫、一鞋墙、一擦拭体与至少一灌浆孔结构。鞋墙包围的结合于中底垫的周缘部位并形成有一中底容置空间；擦拭体套设填充于中底容置空间；灌浆孔结构是由一中空钉与一扣环所构成，其结合于鞋墙上。

A hollow metal cylinder used especially in constructing dams and foundations.

金属指挥棒鼓手挥舞使用的，顶端是厚橡皮的中空的金属棒

SCJZ series of plastic extrusion blow molding machine mainly consists of extruder, machine head, clapper die spotting press, finishing mould, and electric controller.

SCJZ系列塑料挤出吹塑机组，主要由挤出机、机头、合模机、成型模具及电气控制部分等组成，用于吹制PVC、PE、PP等多种塑料中空容器。

The subway building glass curtain wall uses is high tech " breaks the bridge " the heat insulation molding, in addition the double-decked void glass, burning hot will obstruct besides the building.

地铁大厦的玻璃幕墙采用的是高科技的&断桥&隔热型材，加上双层中空玻璃，将炎热挡在大厦之外。

Participation scope: A, glass intensive processing mechanical exhibition region clearer, cutter, machine for edging, engraving machine, drill press, film plating machine, net copier, tube drawing bench, drawing machine, steel and band equipment, spatial equipment, sand, system illuminating apparatus, print works, windows and doors production equipment and so on.

帮忙翻译英文！参展范围： A、玻璃深加工机械展区清洗机、切割机、磨边机、雕刻机、钻孔机、镀膜机、网印机、拉管机、拉丝机、钢化和夹层设备、中空设备、喷砂机、制镜机、印花机、门窗生产设备等。

Hollow rock drill steel ; geometrical structure parameter ; kind of steel ; guality of steel ; rolling technology ; integral drill steels ; extension rods ; ratio of properties and price

中空钎钢；几何结构参数；钢种；钢质；轧制工艺；硬质合金整钎；螺纹连接钎杆；性价比

Hydraulic cylinder driving plate is adopted, thus the glass is stressed evenly and the pressing is made even, ensuring the pressing quality and greatly improving the rate of qualified hollow glass products.

采用液压缸驱动板压压实，玻璃受力、压合均匀，保证了压合质量，使中空玻璃产品合格率大大提高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。