הם העומדים על הפקודים. The ones who have already been mentioned by name in Numbers 1,5-16.

עגלות, seeing that the word is in a construct mode, i.e. עגלות צב, the vowel pattern is “eglot,” “draught carts”, instead of “agalot,” “carts.” We know similar vowel pattern changes in the word “essrot,” “tens of,” instead of simply assarot, tens. When the Torah writes that “one” cart was brought by a team of two princes it uses the standard vowel pattern agalah, as in that part of the verse the princes are the adjective (so to speak) and not the carts, as in the beginning of the verse.

צב, the word has different meanings in different contexts. In Isaiah 66,20 בצבים ובפרדים, “with mules and dromedaries,” it clearly refers to a category of animal. In our context it means animals that are used to be traveling with an army, צבא. The animals in question are able to travel long distances.

וקרבנו, a reference to the sacrifice mentioned previously in verse 12. The components of Nachshon’s sacrifice (gift) are being enumerated now. Just as the Torah had listed separately the composition of the four army camps of the Israelites headed by 1 flag each in Numbers chapter 2, so it lists the gift of each of the princes separately in our chapter.

ON THE DAY OF ITS ANOINTING. They began to dedicate it as is written in this Parasha.

אחרי המשח אותו, at the conclusion of the 12 days when the Tabernacle had already been consecrated the total amounted to the figures listed here.