查询词典 terephthalic

Keywords terephthalic acid;density functional theory;electronic structure;density of states

对苯二甲酸；密度泛函理论；电子结构；态密度

Batch and semi-continuous oxidation of p-xylene to terephthalic acid in oxygen-enriched atmosphere with volume fraction of oxygen from 21% to 80% were investigated.

在体积分数为21%~80%的富氧空气中进行对二甲苯的间歇和半连续氧化反应，获得了富氧条件下对二甲苯氧化反应的固相中间产物(对羧基苯甲醛、对甲基苯甲酸)含量的变化规律。

For example, about 30 million tons of terephthalic acids are produced annually by oxidation of p-xylene with air.

以对二甲苯催化氧化制备对苯二甲酸为例，全球年产量超过3000万吨。

This dissertation consists of two different parts,Part one: Plasma degradation of dye by a nonpulsed direct current glow discharge in an Aqueous Solution;Part two : the synthesis of terephthalic.

本论文的研究分为两部分，第一部分是非脉冲直流辉光放电等离子体降解水中染料的研究，第二部分是对苯二甲酸的新合成路线研究。

A theoretical and experimental study of the filter cake washing and drying performance during the pressure filtration of purified terephthalic acid slurry was conducted.

对精对苯二甲酸浆料的压力过滤过程滤饼洗涤和脱水进行试验研究。

Is a joint venture of BP 85% Zhuhai Fuhua Group 15% BPZ manufactures Purified Terephthalic Acid.

BP 公司是世界著名石油、石化和能源集团之一，位居全球500强的前10位，在全球六大洲100多个国家都有业务。

Glycerol as a by-product is yielded at about 10% of biodiesel during the process of biodiesel production .How to convert glycerol has become a common problem which has to be resolved if considering large amount of biodiesel production. 1,3-propanediol is a valuable chemical material and especially it could be copolymerizes with terephthalic acid to form polytrimethylene terephthalate, which has aroused people's interesting.

在生物柴油的生产过程中，最高可得到约10%的副产物甘油，副产物甘油的去向将成为生物柴油大规模产业化发展所面临的严峻问题。1，3-丙二醇是一种重要的化工原料，作为合成新型聚酯PTT的原料，1，3-丙二醇已引起人们的广泛关注。

By using model Caenorhabditis elegans, the toxicity of purified terephthalic acid wastewater was evaluated through a battery of biotest, including life span, days of 50% lethal, generation time, brood size, head thrashes, and body bends.

应用模式生物秀丽隐杆线虫，通过生命周期、半数致死天数、生殖速度、产卵数、头部摆动频率和身体弯曲次数等指标对精对苯二甲酸废水毒性进行了研究。

The project products meet the national industrial policy, which are widely used in chemical industry, printing and dyeing, chemical, pharmaceutical, textile and food industries, which mainly used to produce vinyl acetate, terephthalic acid as solvent.

本项目产品符合国家产业政策，它广泛用于化工、印染、化肥、医药、纺织和食品等工业部门，它主要用途是生产醋酸乙烯，为苯二甲酸作溶剂。

It is shown that the crystallinity and melting point of copolyesters decreased with increasing content of terephthalic acid or neopentyl glycol respectively, but its heat-resistant properties are obviously enhanced.

结果表明：共聚酯的结晶度和熔点随着体系中对苯二甲酸或新戊二醇的含量增加而下降，而耐热性能则明显提高。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。