heading side的用法和樣例：
例句
- Then the block in the southern side of this fault is the hanging wall and the block in the northern side of this fault is the footwall.
那麼，位於這條斷層南側的岩層是上盤，位於這條斷層北側的岩層則是下盤。 - Comparison of granulometric analysis of the colluvial wedge samples with that on its upper side suggests that their granulometric quality is closely inter-related.
崩積楔樣品與作為物源的斷層下盤樣品的粒度分析對比表明，作為一種近源堆積，崩積楔的粒度特徵與其下盤沉積物在粒度分佈上有一定的繼承性。
