He collected specimens of all kinds of rocks and minerals.他采集了各種巖石和礦物的樣品." Finest specimens of human molars, " he informed me.“ 用精選的真人臼齒做的. ” 他告訴我.I stayed at Columbia for four years, analyzing specimens.我在哥倫比亞呆了四年, 在那里做...
The variations in microstructure of these specimens after annealing are investigated by Mssbauer hyperfine parameters.用穆斯堡爾譜超精細參數研究微觀結構隨退火溫度的變化.The toughness, fractograph and microstructure of the failed die specimens ha...