Библиотека

— Relies upon the linear variation of a human hair element with the moisture content of air.

— A continuous coil with parallel runs in the same plane.

— Time taken to reduce the temperature of produce to a point halfway between the initial and the final temperatures.

— A leak detector consisting of a flame of which the colour changes in the presence of an halogenated hydrocarbon.

— 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

— The hydraulic shock produced in a pipe due to a sudden change in the flow regime.

— A noisy phenomenon due to sustained oscillation of a valve needle on its seat or orifice.

— An expansion valve which can be adjusted manually.

— A valve which is operated by handwheel attached to the spindle.

— The movement of goods in a store.