| 释义 |
bitumen
bi·tu·men B0288800 (bĭ-to͞o′mən, -tyo͞o′-, bī-)n. Any of various flammable mixtures of relatively nonvolatile hydrocarbons that occur naturally or are obtained by fractional distillation of petroleum. Bitumens are used for paving, roofing, and waterproofing. Also called asphalt.
[Middle English, mineral pitch from the Near East, from Latin bitūmen, perhaps of Celtic origin and akin to Welsh bedw, birch trees (a common source of pitch).]
bi·tu′mi·noid′ (-mə-noid′) adj.bitumen (ˈbɪtjʊmɪn) n1. (Elements & Compounds) any of various viscous or solid impure mixtures of hydrocarbons that occur naturally in asphalt, tar, mineral waxes, etc: used as a road surfacing and roofing material2. (Elements & Compounds) the constituents of coal that can be extracted by an organic solvent3. (Chemistry) any liquid suitable for coating aggregates4. (Civil Engineering) the bitumen a. Austral and NZ informal any road with a bitumen surfaceb. (capital) Austral informal the road in the Northern Territory between Darwin and Alice Springs5. (Art Terms) a transparent brown pigment or glaze made from asphalt[C15: from Latin bitūmen, perhaps of Celtic origin] bituminous adjbi•tu•men (baɪˈtu mən, -ˈtyu-, bɪ-, ˈbɪtʃ ʊ-)
n. 1. any of various natural substances, as asphalt, consisting mainly of hydrocarbons. 2. (formerly) an asphalt of Asia Minor used as cement and mortar. [1425–75; late Middle English bithumen < Latin bitūmen] bi•tu′mi•noid`, adj. bi·tu·men (bĭ-to͞o′mən) Any of various flammable mixtures of hydrocarbons and other substances found in asphalt and tar. Bitumens occur naturally or are produced from petroleum and coal.Thesaurus| Noun | 1. | bitumen - any of various naturally occurring impure mixtures of hydrocarbonshydrocarbon - an organic compound containing only carbon and hydrogentar, pitch - any of various dark heavy viscid substances obtained as a residue |
Translationsbitter (ˈbitə) adjective1. having a sharp, acid taste like lemons etc, and sometimes unpleasant. a bitter orange. 有苦味的 有苦味的2. full of pain or sorrow. She learned from bitter experience; bitter disappointment. 痛苦的 痛苦的3. hostile. full of hatred or opposition: bitter enemies. 懷恨的 怀恨的4. very cold. a bitter wind. 嚴寒的 严寒的ˈbitterness noun 苦味 苦味ˈbitterly adverbbitterly disappointed; bitterly cold. 極其 非常地，痛苦地，严酷地，非常寒冷地 bittergourd noun a long, fleshy, bitter-tasting fruit usually used as a vegetable. 苦瓜 苦瓜bitumen (ˈbitjumin) noun a black, sticky substance obtained from petroleum. 瀝青 沥青biˈtuminous (-ˈtjuːmi-) adjective 瀝青的 沥青的bitumen
bitumen (bĭtyo͞o`mən) a generic term referring to flammable, brown or black mixtures of tarlike hydrocarbons, derived naturally or by distillation from petroleum. It can be in the form of a viscous oil to a brittle solid, including asphalt, tars, and natural mineral waxes. Substances containing bitumens are called bituminous, e.g., bituminous coal, tar, or pitch.bitumen[bī′tü·mən] (materials) Naturally occurring or pyrolytically obtained substances of dark to black color consisting almost entirely of carbon and hydrogen, with very little oxygen, nitrogen, or sulfur. bitumenA semisolid mixture of complex hydrocarbons derived from coal or petroleum, as coal-tar pitch or asphalt; before application, usually dissolved in a solvent, emulsified, or heated to a liquid state.bitumen1. any of various viscous or solid impure mixtures of hydrocarbons that occur naturally in asphalt, tar, mineral waxes, etc.: used as a road surfacing and roofing material 2. the constituents of coal that can be extracted by an organic solvent 3. any liquid suitable for coating aggregates 4. the bitumena. Austral and NZ informal any road with a bitumen surface b. Austral informal the road in the Northern Territory between Darwin and Alice Springs 5. a transparent brown pigment or glaze made from asphalt MedicalSeebitterbitumen
Words related to bitumennoun any of various naturally occurring impure mixtures of hydrocarbonsRelated Words |