WATER RESERVOIR, permanent or temporary clump drainless or with a delayed drainage of waters in natural or synthetic hollows (lakes, water reservoirs, ponds, kopani, etc.). In a broad sense - notation of seas and oceans.

ABSTRACTION INTAKE (water intake), hydrotechnical construction for water diversion from the power source (the river, lake, a underground source) with the purpose of its{her} use for needs of water-power engineering, water supply, an irrigation.

DISPLACEMENT, quantity of the water extruded by the swimming vessel; the characteristics of the dimensions of a vessel. Distinguish displacement mass, equal to light mass, i.e. mass of the water seating in volume of a underbody of a vessel, and volume of displacement (volume of a vessel under water).

DIVING BUSINESS, the branch of a production activity enveloping rescue, assembly both other activities underwater and their material, technological and medical support.

WATER-LEU (an armour. Aquarius), zodiacal mia maid.

WATER-LEU, ancient vessel for washing in the form of a beast, a bird, the rider, from clay or metal. It is distributed in Middle Ages in many countries, including in Russia.

WATER TREATMENT (hydrotherapy), outside application of water with the purpose of treatment or quenching. It is carried out{is conducted} in the form of perfusion, rubdown, a wrapping, a shower, baths, etc. With the medical purpose use also baths with an impurity{additive} of oxygen, a carbonic gas, etc.

WATER-MEASURE, some sets of bugs. Length of 1-34 mm. Ok. 700 kinds{views}; dwell{live} on a surface fresh and ocean waters (sometimes in midocean), less often on coasts of water reservoirs. Go or fast slide{slip} on a water plane (from here the title). Predators, trupoedy.

WATERJET (water jet propulsive device), ship propulsor for which the force, driving the vessel, forms by a water jet pushed out from him{it}. Are established{set} on the courts swimming on a shallow water, or are applied in the capacity of an auxiliary thrust device.

WATER HEATER, the same, that a water heater.

VODONOSNOST the RIVERS, the same, as a mean perennial discharge of water or mean perennial volume of an annual flow.

WATER-BEARING HORIZON, layer or some layers of water-permeable rocks, cracks, pores and which other vacuum are filled in with underground waters.

DRAINAGE, removal surface and underground waters from shafts, pits, mining outputs, trenches, trenches, etc.

BANK-PROTECTION FORESTS, grade of the woods secreted in a water preserving zone (along coasts of the large rivers and water reservoirs) for improvement of a water balance, a hydrological regime, reduction of erosion of soils.

WATER PURIFICATION, complex of the production processes, targetting to finish quality of the water acting{going} at a water system from a source of water supply, up to content norms{standards} of parameters.

CATARACT, fall of water in the river from the terrace crossing a river race course. Water can drop on several terraces, derivating a series of cataracts - the cascade; less abruptly dropping cataracts call as waterfalls.

WATER RECLAMATION, reduction of quality of the water used in the technological purposes on different industrial enterprises, and also systems vodo-and heating, etc., in correspondence with requests of consumers.

WATER HEATER (water heater), the heat-exchange apparatus for calefaction of water the ferry, hot water (or gases) with the help of heated bodies, etc. Distinguish water heaters with surface heating (warmly it is transmitted to water at its{her} contact with a surface of heated elements) and with conduction heating (warmly is transmitted to water hot the ferry or gas).

The WATER-RAISING MACHINE (water elevator), the device for non-ramming sloshing (primarily waters). Protozoa water-raising machines - a crane and a gate for a water lifting from the well. Continuous feeding of water implements water-raising machines: the Archimedean screw, a water-raising sprocket, a chain pump.

The WATER-RAISING SPROCKET, the water-raising machine - a sprocket a dia of 2-6 m with loosely hanging scoops which sprockets at rotation scoop water and are drained (being toppled over) above a tray. Sometimes instead of scoops - hardly reinforced vanes.