查询词典 benzene

OBJECTIVE:To explore the effects of benzene on DNA and the mechanism,as well as the changes of antioxidase system it caused.

目的：了解苯对体内 DNA的损伤作用、机制以及抗氧化酶体系的变化情况。

Chronic benzene poisoning can cause DNA impairment of marrow cells and peripheral lymphocytes and reduce the activity of antioxidase.

慢性苯染毒可致小鼠骨髓细胞及外周血淋巴细胞 DNA损伤，体内抗氧化酶活性降低。

The self-made aralkyl amino-terminated polycontaining flexible polyether segment and rigid amino benzene segment was used as curing agent to improve the toughness of epoxy resin.

用自制的一种既含聚醚柔性链段又含苯脂肪氨基刚性链段的端脂肪氨基聚醚作为固化剂对环氧树脂进行增韧改性。

A study has been made of the possible use of o-amino-benzene arsonic acid as a reagent for qualitative detection of small amounts of gold.

本文报告用隣氨基苯砷酸作檢定与测定少量金的結果。

In order to learn the influence of entanglements and other factors on the structural changes of atactic polystyrene, freeze-dried single-chain samples were prepared from dilute solutions of atactic poly- styrene in benzene at different concentrations (1×10-4 and 2×10-5 g/mL).

利用FTIR测试方法，测定a-PS在等温处理时红外吸收峰的时间依赖性与温度依赖性，研究样品中链缠结和链结构单元的堆积等因素对红外吸收峰的影响，进而探讨链缠结对a-PS分子运动的影响。

Initially, we experimented with azeotropic removal of the water with benzene via the Dean-Stark tactic.

起初，我们尝试去除水中的苯共沸经院长-斯塔克战术。

Keywords azeotropy;pressure-swing distillation;process simulation;ethanol-benzene;Aspen Plus

共沸； 变压精馏；过程模拟；乙醇苯； AspenPlus

In the same time, a number of barbituric acid derivatives have been designed. The relations of structure-properties was studied by connecting anthraquinone, benzene and furan.

并以1H-NMR，FTIR，UV-vis，Mass进行了表征，确定了其结构，另外设计了几种巴比妥酸衍生物分子，通过在巴比妥酸衍生物中引入萘、苯以及芳香杂环等不同的共轭桥，研究了结构性能关系。

Substitutes on benzal benzene ring of BFP have different effects on .

BFP 苄基苯环上2-Cl、3-Cl、2-CH3、4-CH3、3-OCH3取代，可增强体外清除。

Substitutes on benzal benzene ring of BFP have different effects on ·OH scavenging activity in vitro. 2-Cl,3-Cl,2-CH3,4-CH3 and 3-OCH3 may enhance the activity. 3-CH3 may not change the activity.

BFP苄基苯环上2-Cl、3-Cl、2-CH3、4-CH3、3-OCH3取代，可增强体外清除·OH活性；3-CH3取代，体外清除·OH活性基本不变；2-OCH3、4-OCH3取代，体外清除·OH活性降低。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。