complex ventilation

The range had not been finished because bids for the complex ventilation system, needed to remove airborne lead particles, were too high.

Copper does not require complex ventilation measures.

No sound penetrated from the outside, save a soft, plaintive moaning of wind in the complex ventilation; no light, no warmth, no change.

She argued that the projects would change very little, given all that needed updating, including a complex ventilation system, and given a desire to keep the museum open while the work went on.

Despite the geothermal power-plants, heat-exchangers, refrigeration, air conditioning and the complex ventilation system that made life bearable in the rest of the Federation, conditions in the A-Levels varied enormously.

The vessel was the first warship equipped with a revolving gun turret, and it used steam engines to turn the massive turret and to power a complex ventilation system and forced-draft furnace.

They were apparently used as sanctuaries for entire communities during epochs when conquering hordes swept across Anatolia, and they are complete with complex ventilation systems, storage areas, cooking and washing facilities, and even heavy stone slabs that could be rolled across passageways to bar invaders.

Although outdoor bioaerosols cannot easily migrate into large buildings with complex ventilation systems, certain categories of outdoor bioaerosols (i.e., fungal spores) do serve as major sources for indoor bioaerosols in naturally ventilated buildings at specific periods of time (i.e., growing seasons for fungi).