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Severity may be rated numerically, or given a rating from "low" to "severe". The rating may be entered into a pavement management system , which will suggest a priority and method for the repair. Systems have been developed that detect fatigue cracking and other types of pavement distress automatically. [ 7 ]
A person generally can go to a pre-caster or a distributor and buy 50 feet (15 m) of trench drain; the cost of the material to create the trench drains can be more expensive than simply using cast-in-place systems, however the money saved through installation, maintenance, and longevity heavily outweighs those costs.
For the interior, common in recent Western cultures include grates, fireguards, log boxes, andirons and pellet baskets, all of which cradle fuel and accelerate combustion. A grate (or fire grate) is a frame, usually of iron bars, to retain fuel for a fire.
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Grate firing is a type of industrial combustion system used for solid fuels. It now is used mainly for burning waste and biomass, but also for smaller coal furnaces. Capacities 0.3 to 175 MWth in industry and CHP; Fuel fired per grate area 1-2 MW/m 2, maximum grate area 100 m 2
A tree grate is a metallic grating installed at the same level with the pavement around a tree that allows the soil underneath to stay uncompacted and the pedestrians to walk near the tree without stepping on the soil. Grate slots allow tree roots to absorb air, sunlight, and water, meanwhile its soil is protected from pedestrian traffic impact.
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This firebox has an open base to provide a large grate area and often extends beyond the cylindrical barrel to form a rectangular or tapered enclosure. The horizontal fire-tube boiler is also typical of marine applications, using the Scotch boiler ; thus, these boilers are commonly referred to as "scotch-marine" or "marine" type boilers. [ 2 ]