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Oils have been used for cooking since prehistoric times. In general, oils come from vegetable sources — plants, nuts, seeds, etc. An oil is extracted from its source by one of ...

oil

Chronometry; Clock

To lubricate clocks effectively is one of the horologist's greatest problems. In the past, mixtures of animal and vegetable oils were used. Great care is necessary in refining ...

safety evaluation earthquake (SEE)

Engineering; Civil engineering

The earthquake expressed in terms of magnitude and closest distance from the damsite or in terms of the characteristics of the time history of free-field ground motions for which ...

civil engineering

Engineering; Civil engineering

The science that deals with designing and building bridges, roads, dams, and other large structures.

glazed tiles

Engineering; Civil engineering

Tile with a fused impervious facial finish composed of ceramic materials fused to the body of the tile, which may be nonvitreous, vitreous or impervious. (2)

vitreous tiles

Engineering; Civil engineering

Tile with water absorption of more than 0.5 percent, but not more than 3.0 percent. (2)

unglazed tiles

Engineering; Civil engineering

A hard, dense tile of uniform composition throughout, deriving color and texture from the materials of which the body is made. (2)

glaze

Engineering; Civil engineering

A ceramic coating matured to the glassy state on ceramic tile. The term "glaze" also refers to the material or mixture from which the coating is made.