例句與造句

1. The explanation was motivated by the absence of axial screw dislocations in the whiskers ( which in themselves are a growth mechanism ), the requirement of the gold droplet for growth, and the presence of the droplet at the tip of the whisker during the entire growth process.
2. It's difficult to find axial screw dislocation in a sentence. 用axial screw dislocation造句挺難的