查询词典 composites

Methods: twenty rabbits with fracture of the femur diaphysis were treated by intramedullary nailing of femur with composites rod of resorbable dl polylactic acid calcium metaphosphate. the animals were sacrificed at 2, 4, 8 and 12 weeks after surgery. the fracture healing, the material degradation and mechanical properties were studied with x ray films, macroscopic, microscopic and electron microscopic observations.

用生物可吸收性聚乳酸/偏磷酸钙复合物棒对20只兔股骨髁上实验性骨折行髓内固定，术后2， 4， 8和12 wk分别经x线摄片、肉眼、光镜和电镜对骨折的愈合、材料的降解性能和力学性能进行观察。

METHODS: Twenty rabbits with fracture of the femur diaphysis were treated by intramedullary nailing of femur with composites rod of resorbable DL polylactic acid calcium metaphosphate.

用生物可吸收性聚乳酸/偏磷酸钙复合物棒对 2 0只兔股骨髁上实验性骨折行髓内固定，术后 2 ，4 ，8和 1 2wk分别经X线摄片、肉眼、光镜和电镜对骨折的愈合、材料的降解性能和力学性能进行观察。

In this paper, ultrasonic irradiation was employed to initiate the emulsion and microemulsion polymerization of methyl methacrylate and preparation of composites with some inorganic nanoparticles.

本文采用超声辐照新技术实现了甲基丙烯酸甲酯的乳液聚合、微乳液聚合以及与无机纳米粒子的纳米复合，得到了具有特殊结构与性能的新材料。

Generally, a segmental chip is formed in turning composites due to the effect of dynamic microcrack behavior.

由于切削变形区微裂纹动态形成的作用，超精密切削该材料时一般形成锯齿型切屑。

The chemical structure and morphology of nano\|composites were characterized by Fourier transform infrared spectroscopy and transmission electron micrography.

实验结果表明，纳米SiO2 颗粒均匀分布在聚氨酯中，并与聚氨酯的基团发生了反应；聚氨酯 SiO2 纳米复合材料具有较纯聚氨酯树脂更高的模量和内耗峰强度。

The consititutiverelations of ferroelectric composites are studied by means of micromechanics.

介绍了基于细观力学方法对铁电复合材料的本构关系进行研究的一些结果。

In this thesis, the mechanical properties of PVC/Al_2O_3 nano-filler composites were researched. And the relationship between microscopic deformation mechanisms and macroscopic mechanical properties was investigated by micromechanics method and finite element methods.

本论文对制备的PVC／纳米Al_2O_3复合材料进行了力学性能测试，主要利用细观力学方法和有限元数值分析方法研究了复合材料微观变形机理和宏观力学性能之间的关系。

Solidification particle metal matrix composites microporosity

凝固；颗粒；金属基复合材料；显微孔隙

The chemical composition and microstructure of the composites were analyzed.

并对层状复合材料的成分和微观结构进行分析。

The effects of temperature on the density, hardness, strength, and microstructure of the composites were investigated.

研究了不同烧结温度对样品密度、Vickers硬度和弯曲强度的影响。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。