查询词典 furfural

The factors which mostly affect the quality and output of the product including molar proportion of reagents, reaction temperature, alkaline concentration and reaction time are analyzed. After orthogonal experiment, it is concluded that the optimized reaction condition is that acetone and furfural are charged with equal molar quantities at 40 with sodium hydroxide (0.10 mol/L) and the operation time 5 h.

通过对影响亚糠基丙酮质量和收率的主要因素原料配比、反应温度、碱浓度、反应时间等单因素实验，探索出合成亚糠基丙酮的优化反应条件为：原料配比n：n=1.0：1.0、反应温度40℃、氢氧化钠溶液浓度为0.01 mol/L、反应时间5h。

The city's existing industrial enterprises in 5178, in which industrial enterprises above designated size 120, carpet, furfural, flax yarn, export coal, ceramic products, fur clothing, cereals, potato chips, astragalus, garlic,"city" brand series dairy products,"Pear Spring" series more than 30 kinds of products such as white wine has won praise at home and abroad customers.

全市现有工业企业5178家，其中规模以上工业企业120家，地毯、糠醛、亚麻纱、出口煤、陶瓷产品、裘皮服装、燕麦片、土豆片、黄芪、大蒜、&古城&牌系列乳品、&梨花春&系列白酒等30多种产品赢得了国内外用户的赞誉。

To the end of 2003, the county has a 30 key industrial enterprises, the formation of the electronic, machinery, coal, chemicals, building materials, clothing-oriented industrial structure, there are 10 enterprises of the products passed the ISO9002 international quality system certification, high-pressure cylinder, accumulator shells, clothing,湖蓝base, furfural and other traditional export products.

到2003年末，全县拥有重点工业企业30多家，形成了以电子、机械、煤炭、化工、建材、服装为主的工业产业结构，有10多家企业的产品通过了ISO9002国际质量体系认证，高压气瓶、蓄能器壳体、服装、盐基湖蓝、糠醛等为传统出口创汇产品。

The oil content in recovered furfural of lube oil refining was determined by gravimetric method. The selected determination conditions of extracting agent petroleum ether, sample of the first/second fraction of vacuum distillation, corresponding oven temperature and drying time were 20 mL, 10 g,(93±2)℃/(103±2)℃ and 26 minutes respectively.

应用重量法对润滑油精制回收糠醛溶剂中油含量的测定方法进行了研究，选定的测定条件为：萃取剂石油醚的用量为20mL，试样的称取量以10g为宜，相应的烘箱温度控制在(93±2)℃/(103±2)℃，烘干26min。

The methods to eliminate the furfural's interference in the determination of cyanide in wastewater, such as silver salt, petroleum ether extraction, two-step petroleum ether extraction, are tested and compared.

目前对糠醛干扰氰化物测定方面的报道不多，大多是只是针对醛类干扰的消除方法，主要有：NaCl -AgNO3-H2 SO4蒸馏法〔3〕、银盐沉淀法〔4 ，5〕、萃取分离〔6〕。

The vocation website of rosin furfural active carbon wood oil operated by we corporation is NO.1 in Google which is a world famous searching engine. The corporation influences strongly in the vocation.

本公司运营的松香、糠醛、活性炭、桐油等行业网站在世界著名的搜索引擎Google行业搜索上多年均排名第一，在业内具强大的影响力。

It undertakes fuel oil, polymer, paraffin wax and chemical fibre, with the main products of non-lead gasoline, light diesel fuel, 20# heavy diesel fuel, topped oil, naphtha, aviation kerosene, cracked diesel oil, fuel oil, base oil, isomer dewaxing oil, liquid petroleum gas, propane, propylene, MTBE, benzene, toluene, xylene, paraffin wax, polyacrylamide, acrylonitrile, ammonia sulfate, semi-refined asphalt, acrylon, furfural extract oil, liquid nitrogen, etc, totaling 338 varieties and more than 100 kinds of brands.

它的主要产品有：高标准清洁汽油、无铅汽油、轻柴油、重柴油、航空煤油、化工轻油(拔头油、裂化原料油、石脑油)、燃料油、&老三套&基础油、异构脱蜡基础油、液化石油气、丙烷、丙稀、MTBE、石蜡、聚丙稀酰胺、丙稀腈、硫胺、硫磺、三苯、半炼沥青、腈纶、糠醛抽出油、液氮等38种100多个牌号的石油化工产品，产品辐射全国25个省、市、自治区。2000年销售收入119.9亿元。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。