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| Galvanometer
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Laboratory instrument that detects and measures small electric currents. Galvanoscope Instrument that measures and determines the direction of electric current. |
| Gambrel
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A roof that has two different pitches. |
| Gambrel roof
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A roof with two pitches, designed to provide more space on upper floors. The roof is steeper on its lower slope and flatter toward the ridge. |
| Gang
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(1) A set of tools, machines, etc. designed or arranged to work together. (2) A group of workers directed by a foreman. (3) A group of people associated together in some way. |
| Gang box
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Also called a handy box, this small, steel or plastic box is used to mount outlets or electrical switches in walls or for joining conduit or cable. |
| Gang drilling
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Stacking up a group of panels so that the holes that are drilled are identically placed in all of the panels. |
| Gang mandrel
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Steel shank that holds more than one tool or several pieces of work to turn simultaneously on a lathe. A nut threaded on the end of the shank hold the pieces in place. |
| Gang milling
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Using multiple heads for milling or shaping more than one piece at a time. |
| Gang operations
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Working on several identical items simultaneously. |
| Gang saw
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Power saw equipped with multiple blades to make several parallel cuts at once. |
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