例句與造句

1. Based on the characterization results , the as - prepared graphite nanosheets were found to be roughly circular platelets of about 50 nm in thickness and 12 urn in diameter , exhibiting a mean aspect ratio in the range of 150 - 300
   基于多種表征技術(shù)，測試結(jié)果表明所制得的納米石墨近似于厚度在50nm左右，直徑約為12 m的圓形薄片。該結(jié)構(gòu)對納米石墨薄片在聚合物基體中形成導(dǎo)電網(wǎng)絡(luò)極為有利。
2. It's difficult to find mean aspect ratio in a sentence. 用mean aspect ratio造句挺難的