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Terms for subject Environment (6528 entries)
chemija chemistry (The scientific study of the properties, composition, and structure of matter, the changes in structure and composition of matter, and accompanying energy changes)
chemijos gamykla chemical installation (Building where chemicals are manufactured)
chemijos įmonė chemical plant (Plants where basic raw materials are chemically converted into a variety of products)
chemijos pramonė chemical industry (Industry related with the production of chemical compounds. The chemical processing industry has a variety of special pollution problems due to the vast number of products manufactured. The treatment processes combine processing, concentration, separation, extraction, by-product recovery, destruction, and reduction in concentration. The wastes may originate from solvent extraction, acid and caustic wastes, overflows, spills, mechanical loss, etc.)
cheminė adsorbcija chemisorption (The process of chemical adsorption)
cheminė analizė chemical analysis (The complex of operations aiming to determine the kinds of constituents of a given substance)
cheminė inžinerija chemical engineering (The branch of engineering concerned with industrial manufacture of chemical products. It is a discipline in which the principles of mathematical, physical and natural sciences are used to solve problems in applied chemistry. Chemical engineers design, develop, and optimise processes and plants, operate them, manage personnel and capital, and conduct research necessary for new developments. Through their efforts, new petroleum products, plastics, agricultural chemicals, house-hold products, pharmaceuticals, electronic and advanced materials, photographic materials, chemical and biological compounds, various food and other products evolve)
cheminė medžiaga chemical (Any substance used in or resulting from a reaction involving changes to atoms or molecules)
cheminė okeanografija chemical oceanography
cheminė reakcija chemical reaction (A change in which a substance is transformed into one or more new substances)
cheminė reakcija chemical reaction
cheminė redukcija chemical reduction (Chemical reaction in which an element gains an electron)
cheminė rizika chemical risk (Probability of harm to human health, property or the environment posed by contact with any substance of a defined molecular composition)
cheminė sandara chemical structure (The arrangement of atoms in a molecule of a chemical compound)
cheminė sandara chemical structure
cheminė savybė chemical property (Properties of a substance depending on the arrangement of the atoms in the molecule, e.g. bio-availability, degradability, persistence, etc.)
cheminė sudėtis chemical composition (The nature and proportions of the elements comprising a chemical compound)
cheminė tarša chemical pollution (Pollution caused by substances of chemical nature, including chlorinated hydrocarbon pesticides, polychlorinated biphenyls, metals as mercury, lead, cadmium, arsenic, etc.)
cheminė trąša chemical fertiliser (Fertilizer manufactured from chemicals; excessive use of them can cause pollution, when all the chemicals are not taken up by the plants and the excess is leached out of the soil into rivers and may cause algal bloom)
cheminės atliekos chemical waste (Any by-product of a chemical process, including manufacturing processes. Often this by-product is considered a toxic or polluting substance)