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- PTFE matrix composites were fabricated using mixing nano sized powder process and vaporizing impregnant process. 采用溶剂蒸发法和固体纳米粉末混合法制备两种工艺制备了PTFE复合材料。
- There are mainly two methods to prepare nano sized titania, uch as vapor phase process and liquid phase process. 纳米钛白的制备方法大致可分为两类,即气相法和液相法,而液相法是研究的重点和热点。
- The results show that the hardness of composites fabricated with vaporizing impregnant process is much higher than that fabricated with mixing nano sized powder process. 结果表明在填料含量相同时,溶剂蒸发法制备的PTFE复合材料的硬度显著高于固体纳米粉末混合法制备的PTFE复合材料的硬度;
- The type,reaction mechanism and application of nano sized semiconductor photocatalyst are reviewed.The improvement of photocatalyst is also discussed in brief. 对半导体光催化剂的类型、作用机理、应用及其性能改进作了综合评述。
- Compared with pure PTT, the thermal stability, crystallization and tensile performance of the PTT/MMT composites are improved due to the introduction of nano sized DK2 MMT. 与纯PTT相比,由于MMT在PTT基体中达到纳米尺寸分散,PTT/MMT复合材料的热稳定性能、结晶性能和拉伸性能都得到了明显提高。
- Using nitrates and etylene diamine tetra acetic acid(EDTA) as raw materials, Nano size La 0.8 Sr 0.2 FeO 3 powder was synthesized by EDTA complexing Sol Gel method at lower temperature. 以金属硝酸盐和乙二胺四乙酸 (EDTA)为原料 ;用EDTA络合溶胶 凝胶法合成了La0 .;8Sr0
- nano sized Y-type oxytitanium phthalocyanine 纳米酞菁氧钛
- nano - sized particle 纳米粒子
- The scattering intensity and polarization properties of different size particles are simulated by the Ricatti-Bessel functions. 摘要利用黎卡地－贝塞尔函数模拟了不同粒子尺度的散射光强和偏振特性。
- In this thesis,the changes of the circulation-time according to different size particles of the broad size coarse carbamide particles were studied. 本文选用宽粒度分布大颗粒尿素物料,在带导流管的喷动流化床中,测定了在不同操作参数条件下,不同粒径粒子的平均循环时间。
- The results show that the different motion tracks of different size particles of broad size materials lead to the different average circulation-time. 大粒径粒子较小粒径粒子的平均循环时间短,大颗粒通过喷动区的次数大于小粒子,生长较快。
- Keywords nano sized silver halide particles;particle growth;thiourea dioxide sensitization;photosensitivity;fish gelatin; 碘溴化银;纳米粒子生长;二氧化硫脲增感;感光度;鱼明胶;
- They differ in size but not in kind. 这些东西的区别只是大小不同而实质一样。
- These secondary hydration products can fill in pores among different size particles and the secondary interface microstructure with compact network figure forms as a res. 这种二次水化产物可填充不同粒径颗粒之间的孔隙,最终形成致密网络状的二级界面显微结构。
- The results show that the mass distribution of the coagulated ash particles still follows the R-R distribution and the same size particles have a Boltzmann charge distribution. 结果表明：荷电颗粒群经历外电场作用下的凝聚过程后，其粒径分布仍然保持R-R分布状态，只是平均粒径加大，粒径分布更加集中；
- A man's shirt is sized by its neck. 男子的衬衫号码是按领口大小分的。
- We sized each other up at our first meeting. 我们初次见面时相互打量了一番。
- Keywords nano size diamond;vacuum fluxing coating;tribological property; 纳米金刚石;真空熔覆涂层;摩擦学性能;
- And the mid- size car have a lot more legroom. 而且中型车的腿部伸展空间较为宽敞。
- He sized up the situation at a glance. 他一眼就看出了这种局势。
