Complex sentence: They were braced to the lower fuselage with parallel pairs of flying struts on each side, joining the wing towards mid-span, and held centrally over the fuselage on cabane struts.
Split into simpler sentences: They were braced to the lower fuselage with parallel pairs of flying struts on each side, joining the wing towards mid-span. The wing was held centrally over the fuselage on cabane struts.