用锡盘抛光α-Al2O3单晶的初步实验研究
Preliminary Study of Superpolishing Sapphire Single Crystal Using Tin Lap
她探身点燃了桌子中央锡铁盘上一小块儿蜡迹斑斑的蜡烛头。
She leaned forward and lit a lumpy little candle that sat on a tin plate at the center of the table .
锡盘