That said, Iâve spent many a weekend 'Visiting Ann Arbor,â and a whole year learning about all the things I wish I would've known before I lived here. Hereâs my âTop 9' list of fun things to do in Ann Arbor.
Definition of tray for English Language Learners. : 1  a thin, flat, and often rectangular piece of plastic, metal, wood, etc., that has a low rim and that is used for carrying things. : 2  a container that has low sides and usually no top and that is used to hold something.
Being lighter, vapour flows up the column and is forced to pass through the liquid, via the openings on each tray. The area allowed for the passage of vapour on each tray is called the active tray area. Tray Designs. A tray essentially acts as a mini-column, each accomplishing a fraction of the separation task.