石化工业的定义是什么

石油化学工业,以下简称石化工业.是指以石油(petroleum)或天然气(natural as)为原料,制造化学品的工业,其制成品称为石油化学品(petrochemicals).广游工业,生产中间原料的中游工业,以及生产.石化工业又称为「三多工业」,亦即「资本密集」,「技术密集」与「劳力密
集」.

humanitarian n.人道主义者

楼主，我不怕长，我来帮助你吧！不过建议后面抄我的答案或者略加修饰时，能考虑到手工翻译的烦恼和优先性。
The chemical industry depends very heavily on petroleum and natural gas as sources of raw materials.
化学工业严重地依赖于石油和天然气作为基本原料。
It is likely that in excess of 80% of the literally thousands of different basic organic chemicals employed today are derived from these sources.
好象今天应用的超过80%的几千种基本有机化学品是这些资源衍生而来。
The petrochemical industry has grown with the petroleum industry. As is the case with the latest trends in changing crude oil types, it must also evolve to meet changing technological and humanitarian needs.
石油化学品工业随着石油工业的增长而增长。粗油类型变化的最新趋势说明技术和人类需求也在发生相应的变化。
The manufacture of chemicals from petroleum and natural gas constituents is an excellent example of the conversion of such materials to more valuable products.
石油和天然气组分的化学品生产是这些能源向更有价值的产品转化的优秀的事例。
The individual chemicals made from petroleum and natural gas are numerous and include industrial chemicals, household chemicals and paints, as well as intermediates for the manufacture of products, such as synthetic rubber and plastics.
来自石油和天然气的个体化合物是大量的，并且包括工业用品，居家用化学品和油墨，加工中间体（例如合成橡胶和塑料）
The processing of petroleum hydrocarbon to yield materials that are, essentially, the building blocks of other chemicals industries, is now very extensive.
石油烃到目标原料的工艺流程基本上是其他化学工业的最原始基础，现在应用非常广泛。
The classification of materials such as petrochemicals is used to indicate the source of the chemical compounds, but it should be remembered that many common petrochemicals can be made from other sources, and the terminology is therefore a matter of source identification.
原料（如石化产品）的分类用于指示化合物的来源，但是应当记住许多普通的化学品也可以有其他来源，因此《终端学》是一门来源鉴定的科学。
Petrochemicals are generally chemical compounds derived from petroleum either by direct manufacture or by indirect manufacture as by-products from the variety of processes that are used during the refining of petroleum. Gasoline, fuel oils, lubricating oils, waxes, asphalts, and the like are excluded from the definition of petrochemicals, since they are not, in the true sense, chemical compounds but are in fact intimate mixtures of hydrocarbons
石油化工产品或或者是直接加工或者是从不同工艺的副产品中间接加工而来，这些工艺包括提炼汽油，煤油，燃油，纺织工业用油，蜡，asphalts, 有些从石化产品的定义中排除出去了，因为他们从实际的感觉上是模拟了烃类的混合物。

石油化工。