发现在微米级基体中掺入纳米级颗粒第二相的材料a2的综合力学性能最佳。
It was found that the material A2 with micrometer matrix strengthened by sub-micrometer second phase had the best comprehensive mechanical properties.
从现代柴油发动机（俗称柴油颗粒物，或DPM）排放的颗粒通常在100纳米（0.1微米）的尺寸范围。
Particles emitted from modern diesel engines (commonly referred to as Diesel Particulate Matter, or DPM) are typically in the size range of 100 nanometers (0.1 micrometer).
通过改变催化剂和溶剂的用量，可以实现碳气凝胶的颗粒直径及孔洞由纳米到微米级的连续调节。
The structures of carbon aerogels are controlled from micro pore to macro pore by changing the concentration of catalyst and solvent.
改进后的装置操作简单方便，采集效率在90%以上，适用于纳米至微米范围所有粒径的颗粒的采集。
The improved device has been proved with convenient manipulation and high collection efficiency beyond 90%, which is applicable to all particle size collection from the scope of nano to micron.
光 散射技术是测量纳米及亚微米颗粒粒径的有效方法。
The dynamic light scattering is an effective method to measure grain diameter in nanon and submicron.
光 散射技术是测量纳米及亚微米颗粒粒径的有效方法。
The dynamic light scattering is an effective method to measure grain diameter in nanon and submicron.
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