If your facility incorporates a laminar flow cleanroom, these MAGNEHELIC and PHOTOHELIC differential pressure gauges can help you maintain the positive pressure necessary to block inrushing contaminants that can damage sensitive materials and operations.
The definition of life-history patter is: an organism's pattern of reproduction; may be rapid or slow (short or long).ong (short) life-history patterns are large species that live in more stable environments that usually have slow life-history patterns. Elephants, bears, whales, humans, and plants, such as trees are long lived.
Example Sentences for life-history. 1  In the virtues of plants they have great belief, and can tell of interesting traits in the life-history of wild flowers. 2  Such, then, is the brief outline of the life-history of one of Nature's water babies. At that period of its life-history it can not be said consistently to have worked hardship to the common man; rather the reverse. There may now be a certain sacramental character in the life-history.