因此，植物燃烧不像煤碳和石油之类的化石燃料，它们在燃烧过程中不会增加大气中的碳含量。
So unlike with fossil fuels such as coal and oil, burning them does not add new carbon to the atmosphere.
这就意味着这颗橙色星球上的液态烃含量是地球上已知石油和天然气总储量的几百倍之多。
That means the orange moon has hundreds of times more liquid hydrocarbons than all the known oil and natural gas reserves on Earth.
比起其要取代的利比亚原油，沙特石油通常更稠密且硫磺含量更高。
Saudi oil is generally more dense and sulphurous than the Libyan crude it will replace.
煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。
Coal contains less energy per unit of weight than weight than natural gas or oil; it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain.
类胡萝卜素和石油醚提取物含量在陈化三个月时降低，之后上升。
The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
石油产品的硫含量质量指标，是与发动机的腐蚀及环保排放有关的重要项目。
The quality specification for sulphur contents in petroleum products is an important item related to engine corrosion and environmental emission.
二氧化碳是一种弱酸性气体，它在石油及气体工业中是一种腐蚀剂，它在天然气中的含量少则痕迹，至50%以上。
Carbon dioxide is a species of weak acidic gas, it is a erodent in oil and gas industries, its content in natural gas may vary from trace to more than 50%.
除少数河口区外，胶州湾绝大多数海域的石油烃、化学耗氧量和金属铬含量均满足渔业水质要求。
The contents of petroleum hydrocarbons, chemical oxygen demand and chrome all meet the fishery water quality standard for major water areas in this Bay except a few estuary areas.
随着世界石油资源不断贫化，石油烃中的砷化物含量越来越高。
With the complexity of crude oil compositions, the content of arsenic compounds in petroleum hydrocarbons increased gradually.
介绍了一种测定油田化学剂和石油产品中硫、氮含量的仪器分析方法。
The paper introduces a method to determine sulfur/nitrogen content in oilfield chemicals or oil products by sulfur/nitrogen elemental analyzer.
石油醚提取物含量有增加。
提高石油产品质量，控制有害物质含量，应是减少汽车排放污染的物质基础。
It's a necessary material base for decreasing vencile's discharge pollution to improve the oil quality and control harmful substance's content.
石油的组分及各组分的含量都发生了变化：其中一些沸点较高的烃类都降解成了沸点较低的低碳烃类。
And the components and content of oil have all changed: some of hydrocarbons with the higher boiling point are degraded into low-carbon hydrocarbons with low boiling point.
对石油类污染物含量高的地下水，我们可以采用臭氧氧化技术来进行处理。
Ozone oxidation technique can be used for ground water with high oil content as a treatment tool.
水体中泥沙的含量和石油类污染物的初始浓度均显著影响石油类污染物的生物降解速率，且在不同时段的影响不一；
The biodegradation rate was greatly influenced by the sediment content and the initial concentration of petroleum contaminants, and such effect was different from one degradation stage to another.
随着世界石油资源不断贫化，石油烃中的砷化物含量越来越高。
With the complexity of crude oil, the content of arsenic compounds in oil products increased gradually.
沥青组分试验表明，跟普通石油沥青相比，该种岩沥青的沥青质含量很高而胶质含量较低。
Group analysis of asphalt in BRA suggests that the content of the asphaltine is very high but the pectin content is lower compared with common oil asphalt.
一些城市已通过法律，允许煤炭和石油只有在其被烧毁硫含量低。
Some cities have passed laws that allow coal and oil to be burned only if their sulfur content is low.
同石油原油相比，F-T合成粗油品主要由链烷烃和链烯烃组成，环烷烃和芳烃含量很少，且具有硫、氮等含量少的优点。
Compared with crude petroleum, F-T synthetic crude oil mainly has paraffin and alkene, containing few cycloparaffin and arene, with extremely low sulfur and nitrogen.
煤的单位能量含量低于石油和天然气，而且会导致包括酸雨在内的一系列环境问题。
Coalcontains less energy per unit of weight than natural gas or oil; it isdifficult to transport, and it is associated with a host of environmentalissues, among them acid rain.
结果表明，在柴油中添加石油磺酸钙清净分散剂，可以降低柴油机的排放烟度和CO含量，特别是烟度的降低幅度较大。
The results showed that the engine emissions of exhaust smoke and CO content decreased by adding fuel detergent in diesel fuel.
二氧化碳是一种弱酸性气体，它在石油及气体工业中是一种腐蚀剂，它在天然气中的含量少则痕迹，至0%以上。
Carbon dioxide is a species of weak acidic gas, it is a erodent in oil and gas industries, its content in natural gas may vary from trace to more than 0%.
简单介绍迪安·斯塔克水分测定仪通过蒸馏方法测量石油产品、焦油、乳化沥青和其他沥青材料的水含量。
Determines the water content in petroleum products, tars, emulsified asphalts and other bituminous materials by the distillation method.
石油酸中脂肪酸含量的增加，将显著升高石油酸酯的倾点。
High fatty acid contents in raw acids can raise the pour points of the esters remarkably.
与此同时，环境污染的加剧促使世界各国对所有的石油产品提出了越来越严格的硫含量的要求。
Meanwhile, aggravation of the environmental pollution impels all the countries in the world to put forward stricter and stricter criterion of sulfur content for all oil products.
对胜利石油化工总厂的FCC汽油中的硫含量、硫分布及硫化物的种类进行了分析。
The content and distribution of sulfur and sulfide species in FCC gasoline produced by Shengli Petrochemical Factory are investigated.
对胜利石油化工总厂的FCC汽油中的硫含量、硫分布及硫化物的种类进行了分析。
The content and distribution of sulfur and sulfide species in FCC gasoline produced by Shengli Petrochemical Factory are investigated.
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