| 单词 | 分馏 |
| 释义 | 〔fraction〕A chemical component separated by fractionation.分馏：被分馏出的化学成分〔crack〕To reduce (petroleum) to simpler compounds by cracking.分馏，裂解：通过挤压使（石油）变成更简单的化合物〔cracking〕Thermal decomposition, sometimes with catalysis, of a complex substance, especially the breaking of petroleum molecules into shorter molecules to extract low-boiling fractions such as gasoline.裂化：有时通过催化作用对复合物的热分解，尤指把石油分子分解成更小的分子并提取低沸点的分馏部分，如汽油〔fractionate〕To separate (a chemical compound) into components, as by distillation or crystallization.分馏：把（化学化合物）分离成各种成份，如通过蒸馏或结晶作用〔neon〕Symbol Ne A rare, inert gaseous element occurring in the atmosphere to the extent of 18 parts per million and obtained by fractional distillation of liquid air. It is colorless but glows reddish orange in an electric discharge and is used in display and television tubes. Atomic number 10; atomic weight 20.183; melting point -248.67°C; boiling point -245.95°C. See table at element 符号 Ne 氖：稀有的惰性气体元素，在空气中以百万分之十八的比例存在，液态空气经分馏后得到。常无色，通电流时发红橙光。用于屏幕和电视显像管。原子序数10；原子量20.183；熔点-248.67°C；沸点-245.95°C 参见 element〔hexane〕A colorless, flammable liquid, C6H 14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature thermometers. 己烷：一种无色可燃液体，C6H 14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体 |
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