Переводчик
Термины и определения
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1Hair hygrometer
— Relies upon the linear variation of a human hair element with the moisture content of air.
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2Hair pin coil
— A continuous coil with parallel runs in the same plane.
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3Half-cooling time
— Time taken to reduce the temperature of produce to a point halfway between the initial and the final temperatures.
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4Halide torch
— A leak detector consisting of a flame of which the colour changes in the presence of an halogenated hydrocarbon.
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5Halocarbon [refrigerant]
— Derivative of hydrocarbon containing fluorine, chlorine or bromine. The usual halocarbon refrigerants are listed below: R 11 Trichlorofluoromethane R 12 Dichlorodifluoromethane R 13 Chlorotrifluoromethane R 13 В 1 Bromotrifluoromethane
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6Hammering
— The hydraulic shock produced in a pipe due to a sudden change in the flow regime.
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7Hammering [of an expansion valve] Needle hammer
— A noisy phenomenon due to sustained oscillation of a valve needle on its seat or orifice.
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8Hand expansion valve
— An expansion valve which can be adjusted manually.
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9Hand stop valve
— A valve which is operated by handwheel attached to the spindle.
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10Handling
— The movement of goods in a store.