Petroleum (also called crude oil),

Petroleum (also called crude oil), in the unrefined or crude form, like many industrial feedstocks has little or no direct use and its value as an industrial commodity is only realized after the production of salable products. Even then, the market demand dictates the type of products that are needed. Therefore, the value of petroleum is directly related to the yield of products and is subject to the call of the market.
Petroleum refining, also called petroleum processing, is the recovery and/or generation of usable or salable fractions and products from crude oil, either by distillation or by chemical reaction of the crude oil constituents under the effects of heat and pressure. Synthetic crude oil, produced from tar sand (oil sand) bitumen, is also used as feed stocks in some refineries. Heavy oil conversion, as practiced in many refineries, does not fall into the category of synthetic fuels (syncrude) production. In terms of liquid fuels from coal and other carbonaceous feedstocks, such as oil shale, the concept of a synthetic fuels industry has diminished over the past several years as being uneconomical in light of current petroleum prices.
As the basic elements of crude oil, hydrogen and carbon form the main input into a refinery, combining into thousands of individual constituents and the economic recovery of these constituents varies with the individual petroleum according to its particular individual qualities, and the processing facilities of a particular refinery. In general, crude oil, once refined, yields three basic groupings of products that are produced when it is separated into a variety of different generic, but often overlapping fractions. The amounts of these fractions produced by distillation depend on the origin and properties of crude petroleum.

結果 (中文) 1:

石油 （也称为原油），在 unrefined 或粗的形式，像许多工业原料有很少或没有直接使用和它的值作为工业大宗商品只实现后生产的畅销产品。即使在当时，市场的需求决定产品所需的类型。因此，石油的价值直接关系到产品的产量和属于的呼唤
石油 refining，也被称为石油加工过程，是恢复和/或代可用或畅销馏分和从原油通过蒸馏或化学反应热和压力的作用下原油成分的产品。合成原油、从焦油砂 （油砂） 沥青生产，也可用作饲料股票在一些 refineries。重油转换练习在很多 refineries，并不落进合成燃料 （syncrude） 生产的类别。在液体燃料从煤和其他碳质原料如油母页岩，合成燃料工业的概念已经降低了过去几年作为根据不合算
作为原油的基本元素，氢和碳形成的主要投入到 refinery，当前石油价格。结合成数以千计的个别成分和经济复苏，这些成分随个体石油根据其特定的个人素质和特定的 refinery 的加工设施。一般情况下，一次 refined，原油产量产品时它分离成各种不同的泛型，产生三个基本分组但经常重叠的分数。通过蒸馏法生产这些分数的数额取决于原油的性质与成因.

結果 (中文) 3:

石油（又称原油），在不懈fi奈德或粗的形式，像许多工业原料有很少或没有直接使用它作为工业商品只实现了畅销产品生产后的价值。即使这样，市场需求决定了所需的产品类型。因此，石油的价值是产品的产量直接相关，受市场的呼唤。
石油重新fi宁，也被称为石油加工，是和/或使用或出售原油馏分及产品生成的恢复，通过蒸馏或用原油成分的化学反应热量和压力的作用下。合成原油，从焦油砂沥青生产（油沙），也被用作一些fineries原料。重油转化，在许多fineries练习，不属于合成燃料的类别（Syncrude）生产。在液体从煤和其它含碳原料的燃料，如油页岩，一个合成燃料工业的概念已经减少了在过去的几年里，在目前的石油价格灯不经济。
作为原油的基本元素，氢和碳的形成主要投入重新fi内里，结合个人的成分，这些成分的成千上万的经济复苏，根据其特定的个人素质的个体石油的变化，和一个特定的重新fi内里的处理设施。在一般情况下，原油，重新fi内德，产生三个基本集团所生产的产品当它分离成各种不同的通用，但往往重叠的部分。这些组分的蒸馏量取决于原油的起源和性质。