What does Numbers 7:18 mean?

one young bull, one ram, one male lamb a year old, for a burnt offering;

one male goat for a sin offering;

and for the sacrifice of peace offerings, two head of cattle, five rams, five male goats, and five male lambs a year old. This was the offering of Nahshon the son of Amminadab.

He offered for his offering: one silver platter, the weight of which was one hundred thirty shekels, one silver bowl of seventy shekels, after the shekel of the sanctuary; both of them full of fine flour mixed with oil for a meal offering;

one golden ladle of ten shekels, full of incense;

one young bull, one ram, one male lamb a year old, for a burnt offering;