light fraction
英 [laɪt ˈfrækʃn]
美 [laɪt ˈfrækʃn]
网络 轻组有机碳; 轻碳; 轻质馏份; 轻馏分; 轻组分
双语例句
- Effects of grassland cultivation on soil light fraction
开垦天然草地对土壤轻组有机质的影响 - The light fraction of gravity separation can be directly utilized or screened prior to utilization.
重选后的轻矿物可以直接利用和筛分利用。 - Issues related with processing scheme and equipment selection of the etherification of FCC gasoline light fraction were discussed based on engineering design standpoint.
从工程设计方面重点探讨催化裂化汽油轻馏分醚化工艺中流程和设备选择方面的问题。 - Due to the large grain size of the samples, the light fraction loss of the samples before and after crushing is greatly reduced.
因样品粒径大，大大减少了样品在粉碎前、后轻馏分的损失，较好地保留了烃源岩分散有机质中轻馏分的原始面貌。 - Effect of Light Fraction Organic Matter on Mineralization of N and P in Taihu Lake Sediments
轻组有机质对太湖沉积物氮、磷矿化的影响 - Effects of soil-surface mulching on organic carbon, inorganic carbon and light fraction organic carbon in dryland soil
不同地表覆盖栽培对旱地土壤有机碳、无机碳和轻质有机碳的影响 - The Impact of Land Use Change and Cultivation Measures on Light Fraction Organic Carbon, Sand and Particle Organic Carbon
土地利用方式和栽培措施对农田土壤不同组分有机碳的影响 - The soil light fraction organic matter content increased with the nitrogen fertilizer application rates in a 19 years long term fertilization experiment.
长期肥料定位试验的研究结果表明，耕层土壤轻组有机质含量随着氮肥施用量的增加而增加。 - Process Optimization on the Dehydration and Light Fraction Removal for Heating Agent of Heat Medium Heater System
热媒脱水和脱轻馏分的工艺优化 - Commercial application shows that when the olefin content of FCC naphtha is near the target value 39%, and the amount of naphtha reprocessing is small, light fraction reprocessing is favorable to increase the yield of goal product.
工业应用表明，在汽油烯烃含量接近目标值（目标值为体积分数39%）时，汽油回炼量小，此时回炼轻馏分汽油有利于目的产品收率的提高； - The light fraction below 200 ℃ amounted to as much as 33%& 40% and increased with pyrolysis temperature.
热解油品质较轻，200℃以下轻馏分质量分数高达33%～40%，热解温度的升高有助于增加轻馏分质量分数。 - The results showed that light fraction C and N pools of the alfalfa-crop rotation systems were higher than in alfalfa grassland.
结果表明，土壤轻组有机碳和氮含量苜蓿-作物轮作系统高于苜蓿草地。 - The plowed layer soil light fraction organic matter of 2004 was higher than 2003. And soil light fraction organic matter of plowed layer was all higher than subsoil in different land use systems. The light fraction organic matter of grassland was much higher.
2004年农田和草地表土层土壤的轻组有机质含量高于2003年含量，并且各种土壤均为表土层含量高于底土层，其中观赏草坪土壤轻组有机质含量较高。 - Study on Cation Polymerization of Light Fraction from Destructive Distillation of Pine Roots
松根轻油的阳离子聚合研究 - Feedstock demands meeting hydrocarbon steam reforming process including impurity contents of olefins, aromatics, sulfur, arsenic and chloride, as well as dry point of light fraction were introduced.
介绍烃类水蒸气转化制氢工艺对原料的要求，加烯烃、芳烃、硫、砷和氯等杂质的含量，以及轻油的干点等。 - Loss of light fraction may degrade oil products and pollute environment.
油品因轻质组分的蒸发排放使其质量降低，并污染环境。 - Soil Microbial Biomass and Soil Light Fraction C and N Among Alfalfa Grassland, Alfalfa-Crop Rotation System
苜蓿草地与苜蓿-作物轮作系统土壤微生物量与土壤轻组碳氮研究 - Light fraction organic carbon ( LF-C) had the same trends with ROC.
轻组有机碳（LF-C）变化与ROC趋势相同。 - The result show that chemical additives can reduce surface tension, when it reacts with oil in high temperature, light fraction in oil will be increased, viscosity of crude oil will be decreased and viscosity will not turn back.
根据试验结果，该化学添加剂能明显降低表面张力；在高温下与原油发生反应，增加原油的轻质馏分，使原油粘度降低，而且原油经过降粘后粘度不会反弹。 - Aliphatic in light fraction is mainly alkene and cycloalkyl substance.
轻质馏分脂肪烃主要为环烯烃和二烯烃等烯烃，烷烃中以环烷烃居多； - In comparison with gasoline, light oil has more light fraction components and better evaporation property, but it has a lower octane number, higher evaporation pressure, and lower calorific value.
与车用汽油相比，轻油中轻质馏分较多，蒸发性好，但辛烷值低，蒸气压高、热值较低。 - Light fraction and sodium phenolate can be returned to the production processes of phenol and acetone.
轻组分和酚钠盐均返回苯酚、丙酮生产装置。 - Active soil organic matter ( ASOM) is an important soil component, influencing dissolved organic carbon ( DOC), microbial biomass ( MB), and light fraction organic matter ( LOM).
活性有机质是土壤的重要组成部分，主要包括溶解性有机碳、微生物生物量、轻组有机质。 - Size-density fractionation is the main technique for light fraction research in the future. That effect of changes of land-use and management on the amounts and characters of soil light fraction would be the main research direction in the future.
密度分组与颗粒大小分组技术的结合是今后研究轻组的主要技术手段，土地利用和经营管理的变化对土壤轻组数量和性质的时空动态影响是未来的主要研究方向。 - A qualified alkane diluent was prepared by catalytic hydrogenation for aromatics saturation with low cost and low sulfur content light fraction as feedstock.
选用低含硫的廉价轻质油为原料，经加氢脱芳烃得到合格的链烷烃稀释剂。 - Analysis of oxygen-containing compounds in light fraction of shale oils& ⅰ. separation of oxygen-containing compounds in shale oils
页岩油轻馏分中含氧化合物的分析&Ⅰ.含氧化合物的分离 - Determining Crude Oil Evaporation Loss Using Method of Analysing Light Fraction Contents Step By Step
用逐级分析原油轻馏份含量的方法测定原油的蒸发损耗 - Top soil organic carbon ( SOC), especially soil light fraction organic carbon ( LFOC) well explained the variation of cumulative RS among the stands.
表层（0-10cm）土壤有机碳（SOC），尤其是土壤轻组有机碳（LFOC）能很好的解释土壤累积呼吸量不同林龄间差异。 - The light fraction organic carbon ( LFOC) of straw mulching was higher 39%~ 42% than of no-mulching, but soil organic carbon decreased.
覆草土壤的轻质有机碳较常规增加39%~42%，但土壤有机碳含量下降。