What does Exodus 27:11 mean?

And likewise for the north side in length there shall be hangings a hundred cubits long, and the pillars thereof twenty, and their sockets twenty, of brass; the hooks of the pillars, and their fillets, of silver.

And likewise for the north side in length there shall be hangings of an hundred cubits long, and his twenty pillars and their twenty sockets of brass; the hooks of the pillars and their fillets of silver.

And likewise for the north side in length there shall be hangings a hundred cubits long, and the pillars thereof twenty, and their sockets twenty, of brass; the hooks of the pillars, and their fillets, of silver.

And on the north side in the same way, hangings a hundred cubits long, with twenty pillars of brass on bases of brass; their hooks and their bands are to be of silver.

and so for the north side in length, hangings of a hundred <FI>cubits<Fi> in length, and its twenty pillars and their twenty sockets <FI>are<Fi> of brass, the pegs of the pillars and their fillets <FI>are<Fi> of silver.

In like manner also on the north side there shall be hangings of a hundred cubits long, twenty pillars, and as many sockets of brass, and their heads with their engraving of silver.

And likewise on the north side in length, hangings a hundred [cubits] long, and its twenty pillars, and their twenty bases of copper; the hooks of the pillars and their connecting-rods of silver.