heavy fraction
英 [ˈhevi ˈfrækʃn]
美 [ˈhevi ˈfrækʃn]
网络 重组有机碳; 及重质馏份; 重馏分
双语例句
- Some kinds of highway paving asphalts were formulated by blending the treated DOA with vacuum residue LVR or heavy fraction of FCC decanted oil.
处理降蜡后的脱油沥青与原料减渣或催化裂化油浆重馏分调和可得到优质道路沥青产品。 - Technology Progress of producing BTX aromatics from heavy fraction of pyrolysis gasoline and correlative hydrodealkylation and non-aromatics hydrocracking techniques were reviewed in this paper.
综述了裂解汽油重质馏分增产BTX芳烃的技术进展以及与此相关的加氢脱烷基和非芳烃加氢裂解技术。 - Progress of the removal of naphthenic acid from heavy sour crude and its fraction is reviewed.
综述了从重质高酸值原油及其油品脱环烷酸的工艺研究。 - Effects of Organic Acid on Heavy Metal Fraction in Soil in Mining Area
有机酸对矿区土壤中外源重金属形态的影响 - STUDY ON HYDRO-COPROCESSING OF YANZHOU COAL AND CATALYTIC CRACKING SLURRY OIL ⅱ. Composition of Heavy Toluene Soluble Fraction and its Usage
催化裂化油浆与兖州煤加氢共处理的研究Ⅱ.重质产物的组成及利用 - This paper deals with the effect of application of organic materials on the properties of humic substances in organo-mineral complexes ( organic matter in heavy fraction) of silt loamy chernozem and clay loamy light saline meadow soil with field, pot and culture experiment for two years.
通过在粉壤质黑钙土和粘壤质轻度盐化草甸土上进行田间、盆栽及培养试验，研究了施用各种有机物料后两年来重组有机质的变化状况。 - Steppe soil had higher amounts of total organic carbon, biomass C, heavy fraction C, HE and different combined humus than sunflower wind-blown soil, but humification degree had no obvious difference.
风沙土种向日葵后其全土碳、生物量碳、重组碳和HE含量及各种结合形态腐殖质含量均下降，但腐殖化程度相差不大。 - The overlapping parts between the stable combination anomaly of stream sediment survey of Mo, Cu, Pb, Zn and the hypothermal mineral combination anomaly through heavy fraction surveying can be taken for foundation to infer mineralization mother rocks and industrial ore bodies.
水系沉积物Mo、Cu、Pb、Zn稳定组合异常与重砂测量高温热液矿物组合异常的重叠部分可作为成矿母岩与工业钼矿体的推断依据。 - The amounts of total organic carbon, biomass C, heavy fraction C, extractable humus ( HE) and loosely-combined humus and the humification degree were higher in steppe chernozem than in wind-blown soil.
与风沙土相比，淡黑钙土的全土碳、生物量碳、重组碳、可提取腐殖物质（HE）、松结态腐殖质的含量和全土腐殖化度较高。 - Study on Extraction of naphthenic acids from Xinjiang heavy oil fraction
从新疆石油重质馏分中提取环烷酸的研究 - With the heavy fraction of FCC naphtha as feedstock, the experiments were conducted in a fixed-fluidized bed ( FFB) reactor over inert quartz sand and acidic catalyst respectively at the temperatures of ( 300-700 ℃).
以FCC汽油重馏分为原料，分别在惰性石英砂及酸性催化剂上，反应温度为300~700℃，在小型固定流化床上进行热裂化和催化裂化实验。 - There are few studies on the effect of crop root systems on the composition, particularly on the heavy fraction of soil humus.
本文对黑钙土、黑土中各种作物根茬留茬与否对土壤腐殖质、土壤重组有机质的组成、结合形态及某些光学性质进行了测定。 - Light gasoline is more suitable for producing propylene than heavy gasoline or full fraction gasoline. High propylene yield can be obtained from light gasoline even when reaction temperature is low and the contact time is only several milliseconds.
轻汽油裂化生产丙烯的性能优于重汽油和全馏分汽油，在相对低的温度下瞬时反应能得到较高的丙烯收率。 - SOM can be divided into light fraction and heavy fraction using the density fractionation technique. Fractionation of lard with surfactant
轻组密度一般<2.0g.表面活性剂分提猪油的工艺研究 - The results showed that the contents of organic matters in soil and heavy fraction were markedly increased and the agrochemical properties of Chernozem were improved by applying organic materials.
结果表明：用有机物料培肥土壤时，可以提高土壤有机质和重组有机质的含量，改善土壤的农化性质。 - The Preliminary Study About the Composition of Daqing Heavy Fraction Oil
大庆重质馏分油组成初步研究 - In this system, the heavy fraction of petroleum has corrosion resistance for steel.
在该体系中石油重馏份对钢有缓蚀作用。 - The Application of GC-MS on Heavy Fraction Oil
GC-MS在重质馏分油组成分析中的应用 - The results indicated that the contents of organic carbon in soil, carbon in heavy fraction, loosely combined humus and stably combined humus were obviously increased when the pig manure was applied.
结果表明，猪粪的施用能明显提高土壤有机碳和松、稳结态腐殖质含量。 - The contents of organic matter in heavy fraction, complex organic matter and differently combined humus in organo-mineral complexes changed markedly.
重组有机质、复合有机质及复合体中不同结合态腐殖质也发生明显变化。 - Longifolene,β-caryophyllene,α-santalene and cedrene are the essential constituents of the heavy fraction of gum turpentine of Pinus massoniana.
长叶烯、β-石竹烯、α-檀香烯、雪松烯是重质松节油的主要成分。 - Blending oil component such as lithium, diesel oil component, treated cylinder oil, regular compressor oil 19#, and rubber filling oil are obtained through highly processing of heavy lube fraction.
通过对重质润滑油馏分进行深加工，获得了锂料等调油组分，内燃机油组分，精制型汽缸油，19＃普通压缩机油及橡胶填充油等。 - The heavy fraction of light diesel oil ( LDOHF), derived from petroleum naph-tha catalytic cracking, was chosen as the additives in co-carbonization of medium coal tarpitch ( MCTP) in order to modify its carbonization property.
催化裂化轻柴油重组分&三线芳烃和中温煤焦油沥青进行共炭化反应，改善了沥青的炭化性能。 - Different types of wetlands had no obvious effect on the organic carbon concentration of free LF, but heavy fraction changed. 7.
不同湿地类型土壤轻组组分中有机碳的浓度无明显的变化，而重组变化较大。 - So, In this experiment, Bio-oil was pretreated by hydrogenation in an autoclave with catalyst, then using the heavy fraction co-process with the paraffin oil in a fixed bed.
本论文通过在高压釜下对生物油进行加氢脱氧预处理，然后取其重质组分与石油馏分中的石蜡油在固定床下进行共炼制。 - After external heavy metal entered soil, exchangeable Cd and Fe-Mn oxide-bound Pb became the majority. Each form concentration increased with the concentration of external heavy metal added, but residual fraction is the lowest with a decreasing trend. 2.
外源重金属进入土壤后，Cd主要以可交换态为主，而Pb主要以铁锰氧化物结合态为主，各形态质量分数随外源重金属浓度的增加而增加，残渣态百分含量逐渐降低。 - Under the no tillage plus organic input treatment, the percentage of organic C was reduced in the light fraction but increased in the heavy fraction, suggesting an increased transformation of organic C from the labile into the stabile pool.
经过免耕及有机投入处理，有机碳含量在轻组降低，重组增加，这表明有机碳从不稳定态转化为稳定态。