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Paraffinic
| Oil glossary |
- A type of petroleum fluid derived from paraffinic crude oil and containing a high proportion of straight chain saturated hydrocarbons. often susceptible to cold flow problems.
- Waxy or “sweet” crude oil. it is the most common type of base oil in production. it has a poor pour point due to the tendency to form wax molecule chains. it typically has excellent oxidation stability and a high viscosity index.
- Having the characteristics of paraffins, saturated hydrocarbons of open chain structure.
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Парафиновый, русский
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Containing, английский
Proportion, английский
- A quantity of something, especially as compared to the whole a high proportion of cancers can be treated by surgery. the proportion of outpatients to inpatients is increasing. ‘…the target cells for adult myeloid leukaemia are located in the bone marrow, and there is now evidence that a substantial proportion of childhood leukaemias also arise in the bone marrow’ [british medical journal]
- Доля; отношение; пропорция prospective (cohort) study
- Доля; отношение; пропорция
- In naval architecture, the length, breadth, and height of a vessel, having a due consideration to her rate, and the object she is intended for.
- Пропорция; состав (смеси и т.п.); пропорциональная часть || составлять, дозировать
Hydrocarbons, английский
- Compounds containing only carbon and hydrogen. petroleum consists chiefly of hydrocarbons.
- Углеводороды
Susceptible, английский
Production, английский
- Refers to a person acting more dramtic than they would in a show, making the situation epic. example after tasha got up, she caused even more of a scene by throwing her purse on the ground, punching her boyfriend, and stomping into a store. what she did was a production.
- Добыча. извлечение полезного ископаемого из недр.
- Производство
- Производство, продукция (наряду с материальными благами продукция включает только те виды услуг, которые могут рассматриваться как реализуемые: к ним относятся услуги, предоставляемые так называемыми лицами свободных профессий; остальные услуги из состава продукции исключаются; в снс)
- N 1 продуцирование, порождение, производство (син. generation); 2 фон. произношение (производство звука ) 1 обработка документов, созданных на естественном языке, а также разработка методов, технологий и конкретных систем, обеспечиваю- щих общение человека с пк на естественном или ограниченном есте- ственном языке. language ~ когн. продуцирование, порожде- ние речи (син. language generation, speech production; см. тж. speech generation; text to speech system) speech ~ порождение речи (син. language generation, language ~; см. тж. speech generation; text to speech system)
- For obtaining the benefits of trading with our colonies, it is necessary that the goods be accompanied by a “certificate of production” in the manner required by marine law. (see origin.)
- Производство, изготовление
- A rule that processes input and produces a sequence of terminal and non-terminal symbols, which can also be passed to further productions. the rules that a compiler or an expert system uses are often called productions. see also: non-terminal symbol, terminal symbol.
- Any process of synthesis, transformation or destruction realized in a space of interacting components that results not merely in the emission of signals or arrangement of characters, but as in a computer or a clockwork in material entities which are capable of interacting with other entities possibly including with the components that produced them. (->autopoiesis, ->allopoiesis)
- The process of creating usable goods from raw materials and/or parts.
- In the context of project financing, a defined portion of the proceeds of production up to a dollar amount.
- The output of goods and services.
- Добыча. извлечение полезного ископаемого из недр. производ- ство. объем добычи или производства.
- Term used to describe the process of extracting, preparing, storing, and delivering well oils.
- The phase of the petroleum industry that deals with bringing the well fluids to the surface and separating them and with storing, gauging, and otherwise preparing the product for the pipeline.
Characteristics, английский
- The distinguishing qualities of a navigation aid or buoy, including shape and color, whether fixed or flashing, and flashing sequence.
- A high-performance fiber with high chemical resistance that does not burn in air. it has no melting point and does not drip when exposed to flame. the fiber and fabrics from pbi retain their flexibility, dimensional stability, and significant strength without embrittlement even when exposed to flame or extreme heat. the fiber emits little smoke in extreme conditions. it processes well on conventional textile equipment, having processing characteristics similar to polyester. it can be used in 100% form or blended with other fibers. it has a high moisture regain and low modulus with comfort properties similar to cotton. the natural color of pbi is a gold-khaki shade, but it can be dyed to almost any medium to dark shade with conventional basic dyes.
- Acetate fabrics are in appearance fast-drying, wrinkle and shrinkage resistant, crisp or soft in hand depending upon the end use.
- Although modacrylics are similar to acrylics in properties and application, certain important differences exist. modacrylics have superior resistance to chemicals and combustion, but they are more heat sensitive (lower safe ironing temperature) and have a higher specific gravity (less cover).
- Although the properties of the nylons described above vary in some respects, they all exhibit excellent strength, flexibility, toughness, elasticity, abrasion resistance, washability, ease of drying, and resistance to attack by insects and microorganisms.
- Because acrylic fibers are thermoplastic, fabrics may be heat-set for wrinkle resistance and to provide permanency to pleats. acrylic fabrics have low moisture absorbency and dry relatively quickly. in general, acrylic fibers are resistant to the degrading effects of ultraviolet rays in sunlight and to a wide range of chemicals and fumes. they provide warmth in fabrics that are lightweight, soft, and resilient. acrylic fibers have relatively poor flame resistance compared with other fibers. some acrylic fabrics, particularly knit types, approximate the hand of fine wool. because of the composition and cross section of the fiber, fabrics made therefrom have a high bulk to weight ratio. this is further enhanced with the so-called “high bulk” spun yarns.
- Glass fiber is incombustible and will tolerate heat up to 1000°f without material damage. potential strength is not realized in woven fabrics or even in yarns, because the fiber is brittle and fracture points may develop, but nevertheless, very high tensile strength is obtained in woven fabrics, and is retained at elevated temperatures. the fiber originally was difficult to color but methods have been developed to accomplish this. moisture absorption is low. electrical and insulation resistance is high.
- Polychlal fibers have a soft, lamb’s wool-like hand and moderate moisture regain. the fibers are also characterized by high flame resistance and high abrasion resistance.
- Polyester fibers have high strength and are resistant to shrinking and stretching. fabrics are quick drying and tend to have wrinkle resistance and crease retention, wet and dry. polyester is used alone and in blends. it has been one of the first fibers to be developed in fabrics with durable-press features.
- Polyethylene fibers have a low specific gravity, extremely low moisture regain, the same tensile strength wet and dry, and are resistant to attack by mildew and insects. these qualities have made polyethylene fiber suitable for industrial applications, geotextiles, outdoor furniture, and similar applications. polyethylene fiber does not dye, and in most cases, it is colored by the addition of pigments and dyes to the material prior to spinning. it has a low melting point, a property that has restricted its use in apparel.
- Polypropylene fibers have a number of advantages over polyethylene fibers in the field of textile applications. the degree of crystallinity, 72 to 75%, results in a fiber that is strong and resilient, and does not fibrillate like high-density polyethylene. polypropylene has a high work of rupture, which indicates a tough fiber, and may be made with tenacities as high as 8.0 to 8.5 grams per denier. the melting point of polypropylene is 165°c, which is low by comparison with nylon or polyester, but is high enough to make it suitable for most textile applications. so light that it actually floats, polypropylene fiber provides greater coverage per pound than any other fiber. it is highly resistant to mechanical abuse and chemical attack.
- Rayon yarns are made in a wide range of types in regard to size, physical characteristics, strength, elongation, luster, handle, suppleness, etc. they may be white or solution dyed. strength is regulated by the process itself and the structure of the yarn. (also see polynosic fiber.) luster is reduced by including delustering materials, such as titanium dioxide pigments, in the fiber when it is extruded. the suppleness of the yarn is controlled by the number of filaments in the yarn, the denier or gauge of the individual filaments or fibers, and the fiber cross-section.
- Spandex is lighter in weight, more durable, and more supple than conventional elastic threads and has between two and three times their restraining power. spandex is extruded in a multiplicity of fine filaments which immediately form a monofilament. it can be repeatedly stretched over 500% without breaking and still recover instantly to its original length. it does not suffer deterioration from oxidation as is the case with fine sizes of rubber thread, and it is not damaged by body oils, perspiration, lotions, or detergents.
Hydrocarbon, английский
- Углеводород
- Углеводород. органическое соединение, содержащее только углерод и водород. атомы углерода могут быть соединены либо в незамкнутую цепь, простую или разветвленную (см. alkane; alkene — алкан; алкен), либо в замкнутые кольца. существует два типа углеводородов с замкнутой цепью: алициклические соединения, которые состоят из трех или более углеродных атомов, соединенных в замкнутое кольцо, и свойства которых аналогичны свойствам соединений такой же молекулярной массы, но с незамкнутой цепью, и ароматические соединения. основой молекулярной структуры ароматических соединений является бензол, простейшее соединение этого ряда, который содержит шесть атомов углерода, соединенных тремя простыми и тремя двойными углерод-углеродными связями. если такие соединения содержат два и более ароматических кольца, они называются полицикличе-гкими; используется также термин «многоядерные» (например, многоядерный ароматический углеводород); общепринятое сокращение полициклических ароматических углеводородов — пау. основными компонентами бензина и других нефтепродуктов являются углеводороды с открытой цепью. эти соединения не считаются опасными для здоровья, даже при тех концентрациях, в которых они присутствуют в городском 74
- Углеводороду.
- Chemical compound that contains only, or principally, carbon and hydrogen. the principal constituent of liquid fossil fuels.
- A compound of hydrogen and carbon of which petroleum products are typically examples. petroleum oils are generally grouped into two parts: naphthenics possess a high proportion of unsaturated cyclic molecules; paraffinics possess a low proportion of unsaturated cyclic molecules.
- A compound composed of carbon and hydrogen, the basic element of countless organic compounds and the principal constituents of petroleum. hydrocarbons in petroleum fall into three basic categories: the straight-chain paraffins (aliphatic); the cyclic (ring) chain (naphthenic) and the cyclic chain (aromatic).
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Parallel systems, английский
Lubrication systems where the dispensing devices are connected to the main line in parallel. each dispensing device operates independent of any other in the system.
Paper chromatography, английский
A method which involves placing a drop of fluid on a permeable piece of paper and noting the development and nature of the halos, or rings, surrounding the drop through time. the roots of this test can be traced to the 1940s, when railroads used the "blotter spot" tests.
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