שמות פרק מ, ז וְ נָתַ תָ אֶ ת-הַכִ יֹּר בֵׁין-אֹּהֶל מֹועֵׁד ּובֵׁין הַמִ זְבֵׁחַ וְ נָתַ תָ ׁשָ ם מָ יִם:
This verse is an allusion to the halacha that immediately after washing for bread, one should make no interruption and proceed to making the blessing on the bread.
The Kiyor is an allusion to the washing basin in one’s house. The Ohel Moed is the source of blessings due to the Divine Presence. And the table of the righteous is like the Altar.
Thus, one places the Kiyor (washing one’s hands) in between the Ohel Moed (the blessing on ritual washing of one’s hands) and the Mizbeach (the table were the food is eaten) without any separations (making the blessing on the bread immediately).