The laser shots created nanometer-sized particles in the air.
激光的射击在大气中产生毫微米大小的微粒。
Change the 20-nanometer iridium to same-sized soot particles and the uptake rate falls by 75 percent.
若用相同大小的20纳米烟尘颗粒替换铱粒子，则摄入率降低75%。
Magnetotactic bacteria can form uniform nanometer sized magnetic particles(megnetosomes)within the bacterial cells and each particle is enveloped in a membrane.
趋磁细菌细胞内合成的纳米磁小体具有颗粒均匀，晶型稳定的特点，每个磁小体有脂膜包被。
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