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| Combination pressure and temperature relief valve
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Hot water heater valve that opens when the pressure or the temperature rises above a certain level. |
| Combination saw blade
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Blade for a power or handsaw that can be used for both ripping and crosscut woodwork. |
| Combination square
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Combination squares are typically used for general carpentry work. They are effective for fast and accurate measuring or marking of 90 degree, 45 degree and 180 degree angles, as well as for checking depth. |
| Combination switch and receptacle
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One unit containing both an electrical switch and a receptacle. |
| Combination window
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A window with glass and screen panels that are interchangeable. |
| Combination wrench
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One of the most popular hand tools, the combination wrench combines an open end and box end of the same size on each side of the wrench. |
| Combined annual efficiency (cae)
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A measure of the amount of heat produced for every dollar of fuel consumed for both home heating and water heating. |
| Combined building sewer
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Sewage disposal system that carries both water drainage and sanitary waste away from a building. |
| Combined sewer
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A sewer system that carries both sanitary waste and storm water runoff. |
| Combined-cycle power plant
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A power plant that uses two thermodynamic cycles to achieve higher overall system efficiency; e.g. |
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