例句與造句

1. Vacancies are formed during solidification due to vibration of atoms, local rearrangement of atoms, plastic deformation and ionic bombardments.
2. The mercury ions are attracted towards the cathode, and the resulting ionic bombardment of the pool maintains the temperature of the " emission spot ", so long as a current of a few amperes continues.
3. It's difficult to find ionic bombardment in a sentence. 用ionic bombardment造句挺難的