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| Supermarket
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Large, high-volume food store where customers serve themselves by going through the aisles and selecting their groceries, which are paid at the cash register, on the way out. |
| Supplementary heat
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The auxiliary or emergency heat provided at temperatures below a heat pump's balance point. It is usually electrical resistance heat. |
| Supply air
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The air flow entering the treated space. |
| Supply duct
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The ductwork that carries air from the air handler to the rooms in the house. |
| Supply kit
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Usually a kit of all parts needed to connect a faucet or toilet to the pipes coming out of the wall. Usually includes stop valves, water connectors, and escutcheons. |
| Supply side
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Technologies that pertain to the generation of electricity. |
| Supply stop
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The valve controlling water supply to a toilet. |
| Support
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(1) To carry or bear a specified weight, strain or pressure. (2) A device used to hold or restrain items. |
| Support lock handle
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The support lock handle locks the table support to the column. Always lock the table support when the drill is in use. |
| Supporting valley rafter
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Rafter which strengthens a roof by running at an angle from eave to ridge and which gives support to cripple rafters, valley jack rafters and the shortened valley rafter adjacent to the same hip. |
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