English to Italian Tech/Engineering Engineering (general)

Come tradurreste "Again for clarity only one pair"? Cioè, "only" si riferisce a "clarity" (nuovamente solo per chiarezza, una coppia...) oppure a "one pair" (nuovamente per chiarezza, solo una coppia...)?

"As now shown in Figures 8 and 9 the rotatable carousel 9 is associated with a chain wheel 85 that cooperates with the overhead conveyor 5 shown in Figure 1. The suspended hooks 7 overhead conveyor chain 5 have been deleted from Figures 8 and 9 for clarity, but the hooks each join the chain wheel 85 at the location where one cutting unit 21 is shown on the carousel 9. *Again for clarity only one pair of* parallel shafts 15 and one cutting unit 21 are shown in Figures 8 and 9. In practice the entire circumstance of the carousel 9 will be formed by pairs of parallel shafts, each pair being associated with one cutting unit."


Grazie!