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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
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。
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。
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；
nano sized Y-type oxytitanium phthalocyanine 纳米酞菁氧钛
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。
WHAT IS THE CRITICAL PARTICLE SIZE ? 什么是关键的粒子尺寸?
He cut the iron pole to the size he wanted. 他把铁杆锯成他需要的尺寸。
What is the exact size of the room? 这个房间的确切面积是多少？
The particle size of nano CaCO3 was measured by using the laser particle size analyser, and sodium hexametaphosphate (Na (PO4) 6) as dispersant. 摘要以六偏磷酸钠为分散剂，使用激光粒度仪对自制针形纳米碳酸钙进行了粒径分析。
He ranged the books according to size. 他照大小顺序排列这些书。