中段:
mesomere
midpiece
参考例句:
The hotel is set plumb in the middle of the high street.
宾馆正好坐落在商街的中段。
Establishment of the Ventilation System of Sublevel Caving in Polylevel Mining
多中段开采分段崩落法通风系统的建立
Study of the effect of polyaluminium chloride on treating the grey water of paper industry
聚合氯化铝处理造纸中段水效果的研究