1)
What are the connotations of "le'Shareis ba'Kodesh" in connection with the Bigdei ha'Serad?
1.
Rashi and Rashbam: It refers to the Avodah of covering the holy vessels (the Aron, the Shulchan, the Menorah, and the two Mizb'chos) with these special coverings 1 whenever they traveled.
2.
Ramban (in Ki Sisa): They are synonymous with the Bigdei Kehunah. 2
2)
Why does the Pasuk refer to the Bigdei Kehunah as "Bigdei ha'Serad"?