美[pə'trəʊliəm] 英[pə'trəʊliəm] n.石油;原油 权威英汉双解 网络释义 petroleum. n. 1. 石油;原油mineral oil that is found under the ground or the sea and is used to produce petrol/gas, paraffin , diesel oil, etc.
The meaning of PETROLEUM is an oily flammable bituminous liquid that may vary from almost colorless to black, occurs in many places in the upper strata of the earth, is a complex mixture of hydrocarbons with small amounts of other substances, and is prep
Petroleum is a fossil fuel. 石油是一种化石燃料。 The liquid comes from the remains of plants and animals that died millions of years ago.These remains were buried deep below levels of rock over time and under great pressure. 它是深埋在岩石层下达数百万年的动植物遗体在重压下经年累月形成的。
解析 先分析意思和种类petrol是指汽油oil意指所有的油 包括石油,食用油petroleum 意思通常指海床开采的石油 用于英式英文多crude意思也是原油,通常指未加工的天然开采的物质 尤其指石油(含大量杂质)而且通常用于美式英语纯度petrol最高 crude和petroleum最低
Petroleum Science Open access 9.4CiteScore 6.0Impact Factor Articles & Issues About Publish Submit your articleGuide for authors Articles in press Articles in press are accepted, peer reviewed articles that are not yet assigned to volumes/issues, but are citable using DOI. Note to users...
1Impact of Property Valuations on the Petroleum Industry Thepetroleum industry'sreliance on accurate and reliable valuation methods is apparent. The risk of paying too much for an acquired property, or selling for too little, is always present. The frequency and size of property transactions undersc...
Petroleum, complex mixture of hydrocarbons that occur in Earth in liquid, gaseous, or solid form. The term is often restricted to the liquid form, commonly called crude oil, but, as a technical term, ‘petroleum’ also refers to natural gas and the visco
Petroleum是一个广义概念，既包括原油，也包括石油产品（petroleum products），它和oil有时可以互换使用。中文里说的“石油”常常指的就是“原油”。除汽油外，柴油（diesel）、煤油（kerosene）、液化石油气（liquefied petroleum gas，缩写为LPG）等也是重要的石油产品。上面这些油可以做燃料，还有一些油可以吃，例如...
Now, um, a little more on the petroleum industry. As far as the extraction process, the petroleum industry digs deep wells to reach underground oil fields, where crude oil has accumulated over a large area and is trapped between layers of rocks. Then it pumps the crude oil out. . Then...
Coking, as the term is used in the petroleum industry, is a process for converting nondistillable fractions (residua) of crude oil and heavy feedstocks (heavy oil, extra heavy oil, and tar sand bitumen or blends thereof) to lower-boiling products and coke. ...