查询词典 benzene

By the way,Sunny usually drinks the water which is made in this way,all hazardous substance are absorbed on bamboo charcoal pieces,the boiled water is slightly sweet ,so daintily,not like the bottle water which contains benzene and so on,Sunny usually takes the selfmade water everytime when she climbs the mountain or goes hiking

顺便说一下，Sunny平时喝的就是这样自制的竹炭水，有害物质都吸附在碳片上，煮开的水微甜自然自然的好喝，不像瓶装水含苯之类有害物质。。。爬山远足Sunny都带自制水

Firstly, A mixing solvent composed of benzene and isopropanol was used to prepare boehmite sols in the Sol-Gel processes during the preparation of asymmetric alumina membranes taking aluminum isoproxide as raw materials. And the operation conditions in relative periods were optimized.

首先，在以异丙醇铝为原料采用Sol-Gel法制备不对称氧化铝膜的过程中，提出用溶解度较大的苯与异丙醇组成的混合溶剂作为分散剂来配制Boehmite溶胶，并且对各环节的控制条件进行了优化。

In the present work, benzene and aqueous ammonia are used as starting materials, hydrogen peroxide is used as the oxidant to synthesis aniline.

苯胺是重要的化学化工原料，传统的生产方法存在操作条件苛刻、方法复杂、污染环境和腐蚀设备等严重不足，不符合当今的绿色化学和可持续发展的要求。

It was found that with the Ni-Zr-Ce/Al2O3 catalyst prepared in present work the production of aniline from benzene, hydrogen peroxide and aqueous ammonia could be realized under mild conditions, that is, at about 50 °C and under atmospheric pressure, and the selectivity of aniline is much higher than that of phenol.

发现在常压、50 ℃的温和条件下，该催化剂对苯、氨水与 H_2O_2直接氧化胺化生成苯胺有较好活性，并且其对苯胺的选择性远远大于对苯酚的选择性。

A series of Ni-V/γ-Al2O3 catalysts were prepared and used in the one-step synthesis of aniline from benzene, hydrogen peroxide, and aqueous ammonia and/or urea.

设计并制备了Ni-V/γ-Al2O3催化剂，研究了其上苯用过氧化氢氧化氨化一步直接合成苯胺的性能和不同氨基源对合成苯胺的影响。

The present thesis deals with the study of the direct oxy-amination of benzene to aniline with aqueous ammonia using hydrogen peroxide as the oxidant under mild reaction conditions (low temperature and atmospheric pressure).

本文采用苯为起始原料，以氨水为氨基源，过氧化氢为氧化剂，在温和条件下研究了由苯直接氧化氨基化合成苯胺的反应。

The activity of benzene hydrogenation decreased with an increase of the Zn content.

苯的氢化反应活性随锌的含量增加而降低，但环己烯的选择率与产率随锌的含量增加而增加。

In brief, the above article says: According to research done by a U.C., the car dashboard, sofa, air freshener will emit Benzene, a cancer causing toxin.

开车的民众要注意，根据美国加州大学的研究发现，汽车的仪表板、沙发、内装和芳香剂，会挥发致癌物质「苯」。

Such as daily-use chemical products, I plant a beautiful tree shampoo series is a new type of environmentally friendly products, the present invention has applied for national patents and patent applications is the "03126948.6", this product contains toxic TOB factor, showed that modern medicine , scalp excessive absorption of atmospheric lead, cadmium, benzene brain can slow memory decline in children, pregnant women, abortion, dry hair shedding, and general cleaning agent it is difficult to remove them, a new factor TOB detoxification can do it.

等日用化工产品，我厂生产的美丽树洗发水系列是一种环保新型产品，本发明已申请国家专利，专利申请号是&03126948.6&，本产品含有TOB排毒因子，现代医学表明，头皮过多吸收大气中的铅、镉、苯可使大脑迟钝、儿童记忆力下降、孕妇流产、头发干枯脱落，而一般的清洁剂难以去除它们，全新TOB排毒因子可以做到。

An experimental study of 300 mice exposed to pitch(3 gm.dissolved in 10 ml.of 80% benzene solution)obtained from 4 different sources,name- ly Anshan coal-tar pitch,Yu-men petroleum pitch,Dairen petroleum pitch or commonly known as Russian crude oil and the Asia Oil Company, USA,was carried out over a period of 350 days.

三根据四种来源不同的沥青所引起皮肤良性与恶性病变的发病率和潜伏期的长短，可将其毒性的强弱顺序排列如下：(1)鞍山煤焦油沥青，(2)美国亚细亚公司石油沥青，(3)大连石油沥青，(4)西北玉门石油沥青。

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。