threading dislocation的用法和樣例：
例句
- With the dislocation density increasing the maximum of the principal strain augments with the pass increasing.
隨著位錯密度的增加，主應變最大值隨後續擠壓道次的增加呈增大趨勢。 - Another is to decrease the dislocation density of material as much as possible, such as the whisker.
二是盡量減少位錯密度，晶須就是這種方法的一個實例。
