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Car wheel in which the rim is connected to the hub directly or with the help of the spokes

a complex of methods used for cutting off the number of undesirable in economy organisms with the help of other species (predators, parasites, etc.).

Assistance of a scientific or technological character rendered to the enterprise’s personnel to help them in observance of the environmental protection requirements.

– study of landscapes and factors affecting them with the help of facilities that are in a distance from an object of observation (e.g., automatic meteorological stations

withdrawal of separate component of solid matters (grounds, rocks) by converting them in solution (usually aqueous) frequently with the help of chemical agents or micro-o

хашар, помощь (добровольная общественная взаимопомощь при каких-л.работах) voluntary help; charitable action in any work entraide, travail collectif bénévole sans être pa