| petroleum (A comparatively volatile liquid bitumen composed principally of hydrocarbon, with traces of sulphur, nitrogen or oxygen compounds; can be removed from the earth in a liquid state) |
nafta |
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| petroleum consumption (Petroleum belongs to non-renewable energy sources; it is a complex substance derived from the carbonized remains of trees, ferns, mosses, and other types of vegetable matter. The principal chemical constituents of oil are carbon, hydrogen, and sulphur. The various fuels made from crude oil are jet fuel, gasoline, kerosine, diesel fuel, and heavy fuel oils. Major oil consumption is in the following areas: transportation, residential-commercial, industrial and for generating electric power) |
naftas patēriņš |
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| petroleum geology (The branch of economic geology that relates to the origin, migration and accumulation of oil and gas, and to the discovery of commercial deposits. Its practice involves the application of geochemistry, geophysics, paleontology, structural geology and stratigraphy to the problems of finding hydrocarbons) |
naftas ģeoloģija |
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| petroleum industry (Manufacturing industry utilizing complex combination of interdependent operations engaged in the storage and transportation, separation of crude molecular constituents, molecular cracking, molecular rebuilding, and solvent finishing to produce petrochemical products) |
naftas rūpniecība |
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| pH-value |
pH vērtība |
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| phanerogam (Plants that produce seeds. The group comprises the Gymnospermae and the Angiospermae) |
ziedaugi |
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| pharmaceutical industry (Concerted activity concerned with manufacturing pharmaceutical goods) |
farmācijas rūpniecība |
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| pharmaceutical waste (Discarded medicinal drugs and related products from pharmacies, hospitals, clinics, pharmaceutical manufacturers, etc.) |
farmaceitiskie atkritumi |
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| pharmacokinetics (The study of the rates of absorption, tissue distribution, biotransformation, and excretion) |
farmakokinētika |
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| pharmacology (The science dealing with the nature and properties of drugs, particularly their actions) |
farmakoloģija |
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| phenol (A white crystalline soluble poisonous acidic derivative of benzene, used as an antiseptic and disinfectant and in the manufacture of resins, nylon, dyes, explosives and pharmaceuticals) |
fenols |
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| pheromone (Any substance secreted by an animal which influences the behaviour of other individuals of the same species) |
feromons |
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| philosophy (The academic discipline concerned with making explicit the nature and significance of ordinary and scientific beliefs and investigating the intelligibility of concepts by means of rational argument concerning their presuppositions, implications, and interrelationships; in particular, the rational investigation of the nature and structure of reality (metaphysics), the resources and limits of knowledge (epistemology), the principles and import of moral judgment (ethics), and the relationship between language and reality (semantics)) |
filozofija |
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| phosphate (1. Generic term for any compound containing a phosphate group. 2. Any salt or ester of any phosphoric acid, especially a salt of orthophosphoric acid) |
fosfāts |
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| phosphate removal (Replacement of phosphate in detergents by environmentally safer substances, such as zeolite. The substitute will not act as a nutrient, and so will not cause eutrophication as a result of the accelerated growth of plants and microorganisms if it is released into waterways) |
fosfātu aizstāšana ar videi draudzīgākiem komponentiem |
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| phosphate substitute (All substances that are able to substitute phosphate compounds in detergents; they must have the same chemical and physical properties and must be less polluting for the environment) |
fosfāta aizvietotājs |
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| phosphatic fertiliser (Fertilizer compound or mixture containing available (soluble) phosphate; examples are phosphate rock (phosphorite), superphosphates or triple superphosphates, nitrophosphate, potassium phosphate, or N-P-K mixtures) |
fosfāta mēslojums |
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| phosphorus (A nonmetallic element used to manufacture phosphoric acid, in phosphor bronzes, incendiaries, pyrotechnics, matches, and rat poisons; the white or yellow allotrope is a soft waxy solid, soluble in carbon disulfide, insoluble in water and alcohol, and is poisonous and self-igniting in air; the red allotrope is an amorphous powder, insoluble in all solvents and is nonpoisonous; the black allotrope comprises lustrous crystals similar to graphite, and is insoluble in most solvents) |
fosfors |
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| photochemical agent (Agents which trigger off photochemical reactions) |
fotoķīmiska viela |
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| photochemical effect (The result or consequence of a chemical reaction caused by light or ultraviolet radiation) |
fotoķīmisks efekts |
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