精制

It is refined by super synthetic base oil and most advanced additive; reaches completely and transcend the API CH-4/SJ level standard.

以优质合成基础油和美国润英联添加剂精制而成，符合美国石油学会API CH-4/SJ等级标准。

It is refined by super synthetic base oil and most advanced additive; reaches completely andtranscend the API CG-4/SJ level standard.

以优质合成基础油和美国润英联添加剂精制而成，符合美国石油学会API CG-4/SJ等级标准。

The complex supporters with different mass fraction of TiO2 for preparation W2N/γ-Al2O3-TiO2 catalyst were made by titanic acid tetra-butyl ester sol-gel method and γ-Al2O3 as raw materials.

Al2O3稳定性好、比表面积大，价廉易得，是一种广泛应用的催化剂载体，对以其为载体的油品加氢精制催化剂的研究也很多。

In the production of biodiesel from cottonseed oil by chemical method, the refining process was improved by substituting adsorption treatment for washing and drying.

以棉籽油为原料，探讨了化学法制取生物柴油过程中以吸附剂处理替代水洗干燥的精制工艺。

Under these conditions, an equal high yield of methyl ester (97%) was achieved for the crude cottonseed oil and the refined cottonseed oil.

在此条件下，精制棉籽油和粗制棉籽油的最高甲酯得率均可达到97%，且反应物乙酸甲酯和副产物三乙酸甘油酯均对脂肪酶无失活作用。

These series of products are formulated by refined mineral oil with anti-oxidant, dispersant and cryogen additives, it possessing good cooling, anti-oxidant property, suitable for lubrication of high temperature equipment (≤260℃).

本产品系列是由精制的矿物油与抗氧、分散、催冷等添加剂调配而成具有较好的抗氧化安定性、冷却性，适合于各种合金钢、渗碳钢的淬火。

The paper discusses the process conditions of producing synthetic cryolite by carbonation method and the main factors affecting the yield rate of sodium fluosilicate.

本文探讨了碳酸化法合成冰晶石的工艺条件，确定了影响氟硅酸钠纯碱分解率的主要因素，试验结果表明：NaF溶液的精制和〔6F-〕/〔Al〕、反应温度等对冰晶石性能有显著的影响。

At the end of the 1990s, there is breakthrough progress in the phenol-acetone process of the world. Especially development of molecule sieve catalyst for cumene is not only of progress of the technique ,but also possibility of clean-production, Also, sythesization and purification of phenol-acetone have been get improvement largely.

九十年代末，世界苯酚丙酮生产技术有了突破性的进展，尤其是分子筛催化剂合成异丙苯技术的开发，不仅是技术的飞跃，而且实现了清洁生产；加之苯酚丙酮合成与精制技术也在不断改进，使装置产品产率和质量进一步提高，物耗能耗大幅度下降。

The typical industrial technology of producing phenol was cumene process containing four steps: alkylation,oxidation,purification and recovering.

异丙苯法是苯酚、丙酮的代表性工业制备方法，主要由烃化、氧化、精制、回收四个工序组成。

This standard is applied to crude paraffin which is made of raw material with oil paraffin and is diaphoresised or de-oiled not by decolor.

本标准适用于以含油蜡为原料，经发汗或溶剂脱油，不经精制脱色所得到的粗石蜡。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。