That replanting process, called forcing, must take place in a darkened, temperature-controlled room.

In wallcoverings, papers are stored in boxes and drawers with acid-free paper in darkened temperature-controlled rooms.

In the darkened, temperature-controlled room that contains the exhibition, prehistoric woodworking tools mix with late 19th-century snowshoes and contemporary paintings.

The instrument, which was located in a temperature-controlled room, was fed with optical fibers from the Cassegrain focus.

As befits something designed by an engineer turned pork butcher, it combines craft with technology in several temperature-controlled rooms filled with gleaming stainless steel equipment.

The rare books, now in cardboard cartons in the vault, were to have been kept in locked glass cases in a temperature-controlled room.

The transfer of artworks to another location, however, poses particular problems because they are currently kept in temperature-controlled rooms.

Huge investments in new facilities, temperature-controlled rooms and sophisticated breeding techniques created a boom in the number of pigs produced and sent to market.

She continued: "We have the tapes in a temperature-controlled room, but it's probably not controlled enough, and the tapes will deteriorate anyway, no matter where they're stored.

Much of the time they remain sealed in black, airtight boxes in a temperature-controlled room.