paraffins
简明释义
n. [材]石蜡；[有化]链烷烃（paraffin 的复数）
v. 涂石蜡（paraffin 的第三人称单数）
英英释义
单词用法
n. 固体石腊 | |
石蜡切片 |
同义词
反义词
| 烯烃 | Olefins are used as building blocks in the production of various chemicals. | 烯烃被用作生产各种化学品的基础材料。 | |
| 芳香烃 | Aromatic hydrocarbons are important in the manufacture of dyes and plastics. | 芳香烃在染料和塑料的制造中非常重要。 |
例句
1.Alkeane Carbon Number Distribution of Paraffins;
石蜡碳数分布；
2.Paraffinic having the characteristics of paraffins saturated hydrocarbons of open chain structure.
石蜡族具有石蜡的特性、开放式结构的饱和烃。
3.That is dehydrogenation and cyclization of paraffins, dehydrogenation and aromatization of naphthenes, and cracking reaction to form C 5 lighter products.
集总组分之间主要发生烷烃脱氢环化、环烷烃脱氢芳构化和加氢裂化反应。
4.Paraffins have high diesel indices .
链烷烃的柴油指数最高。
5.The technology of separating normal paraffins from the naphtha through the adsorption process was studied to optimize the steam cracking feedstock and utilize the naphtha resource properly.
为了优化乙烯裂解原料并合理利用石脑油资源，将石脑油中的正构烷烃进行分离。
6.The flowability improvement by using commercial pour point depressant WHP is studied for Zhengwangzhuang viscous crude oil of Shengli, containing 56.9% wax, of which 96.6% is noraml paraffins.
实验研究了工业品原油降凝剂WHP改善含蜡56.9%、其中96.6%为正构烷烃的胜利郑王庄稠油流动性的效果。
7.Simulated moving-bed (SMB) adsorption is used for the separation of paraffins, i. e. , dewaxing by molecular sieve, which is one of the important processes in the production of alkyl benzene.
为提高分子筛脱蜡过程的效率，降低消耗，用模拟移动床动态吸附模型对分子筛脱蜡过程进行了模拟计算。
8.Compostions of gasoline varies from olefins to paraffins and aromatics.
汽油组成发生变化，烷烃、芳烃含量增加，烯烃含量降低。
9.Brief chlorinated paraffins add colour principle, detail introduce chlorinated paraffins colour in excess of standard specific phenomena analyse add colour in no qualify standard cause and solve way.
概述了氯化石蜡生色的原理，详细介绍了氯化石蜡色泽超标的具体现象，分析了产生色泽不合格的原因及解决的方法。
10.The candle is made from natural wax and contains no paraffins.
这根蜡烛是由天然蜡制成的，不含任何石蜡。
11.The oil industry produces various types of paraffins for different applications.
石油工业生产各种类型的石蜡用于不同的应用。
12.Some people prefer skincare products that are free from paraffins.
一些人更喜欢不含石蜡的护肤产品。
13.Many cosmetics use paraffins as a base for their products.
许多化妆品使用石蜡作为其产品的基础。
14.In the lab, we often work with paraffins for sample preparation.
在实验室中，我们经常使用石蜡进行样本准备。
作文
In the world of chemistry and materials science, the term paraffins (石蜡) refers to a group of saturated hydrocarbons that are primarily derived from petroleum. These compounds are characterized by their simple molecular structure, consisting mainly of carbon and hydrogen atoms arranged in a straight or branched chain. The significance of paraffins (石蜡) extends beyond mere chemical composition; they play a crucial role in various industrial applications, including the production of fuels, lubricants, and even candles.One of the most common uses of paraffins (石蜡) is in the formulation of fuels, such as gasoline and diesel. In these applications, paraffins (石蜡) contribute to the energy density and combustion efficiency of the fuel. Their relatively high boiling points allow them to remain stable under varying temperatures, making them ideal for use in internal combustion engines. Furthermore, the presence of paraffins (石蜡) in fuel blends can enhance the overall performance of engines by improving ignition characteristics and reducing emissions.Another important application of paraffins (石蜡) is in the manufacturing of lubricants. Lubricating oils often contain a mixture of different hydrocarbon types, including paraffins (石蜡), which help reduce friction between moving parts in machinery. The viscosity and stability of paraffins (石蜡) make them suitable for use in both high-temperature and low-temperature environments, ensuring that machinery operates smoothly and efficiently.In addition to fuels and lubricants, paraffins (石蜡) are also widely used in the production of candles. The waxy texture and ability to hold fragrance make paraffins (石蜡) an ideal choice for candle manufacturers. When heated, paraffins (石蜡) melt into a liquid form, allowing for easy molding into various shapes and sizes. Moreover, the clean-burning properties of paraffins (石蜡) ensure that candles produce minimal soot and smoke when lit, making them a popular choice for both decorative and functional purposes.Despite their many advantages, the use of paraffins (石蜡) is not without controversy. Environmental concerns have been raised regarding the extraction and processing of petroleum-based products, including paraffins (石蜡). As society moves towards more sustainable practices, researchers are exploring alternative sources of paraffins (石蜡), such as biofuels derived from plant materials. These renewable resources may offer a more environmentally friendly solution while still providing the beneficial properties associated with traditional paraffins (石蜡).In conclusion, paraffins (石蜡) are a vital component in many industries, from fuel production to candle making. Their unique properties and versatility make them indispensable in everyday life. However, as we advance towards a more sustainable future, it is essential to consider the environmental impact of our reliance on petroleum-based paraffins (石蜡) and seek innovative solutions that balance functionality with ecological responsibility.
