They were working frantically in the fear that an aftershock would jolt the house again.他们拼命地干着，担心余震可能会使房子再次受到震动。They were already under stress, thanks to the aftershock of last year's drought.去年遭受的旱灾让他们心有余悸、倍感忧虑。Me...
Electron microscopy has revolutionized the study of crystal imperfections.电子显微学已经革新了对晶体不完整性的研究.These features are examined by optical microscopy, scanning electron microscopy, and transmission electron microscopy.这些图形可以用...