查询词典 aromatic

Distribution Characteristics of Polycyclic Aromatic Hydrocarbons in Different Soil Organic Carbon Fractions

多环芳烃在土壤不同有机质组分中分配特征的研究

Automobile exhaust also found 32 species of polycyclic aromatic hydrocarbons, including 3,4 - benzopyrene and other carcinogenic substances.

汽车尾气中还发现有32种多环芳烃，包括3，4-苯并芘等致癌物质。

On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust.

在地球上，可以在烤土司和汽车尾气中找到多环芳烃。

Recently, more and more attentions are paid on the behaviors and fates of polycyclic aromatic hydrocarbons because of their potential hazard and risks to environment and humans.

中文摘要：多环芳烃是环境中较为常见的持久性有机污染物，它们在环境中的行为、归趋及可能造成的危害和环境风险越来越引起人们的关注。

Determination of Polycyclic Aromatic Hydrocarbons in Drinking Water By b Liquid-Liquid Extraction and HPLC with Coupled Ultraviolet and Fluorescence Detection.

测定多环芳烃的饮用水中的B液液萃取和高效液相色谱耦合紫外线和荧光检测。

On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust.

在地球上，烤糊的面包和汽车尾气里都含有稠环芳烃。

The contents of 10 species of polycyclic aromatic hydrocarbons and the routine indexes of COD, BOD5, etc.

用HPLC和化学分析法，监测了1999~2002年丰水期和枯水期杭州市地面水中10种多环芳烃的含量和COD、BOD5等常规指标。

Objective To study the influences of external exposure on polycyclic aromatic hydrocarbons-DNA adduct formation in lung cancer patients.

吕京目的探讨某些外在因素和体内多环芳烃类-DNA加合物的量以及人肺癌三者的关系，以期评价环境的影响，发现高危人群。

The FTIR of lignin-based polyhydric alcohol shows new characteristic peak of carbonyl is formed and the characteristic peak of aromatic ring and polyether at 1600cm-1 and 1110cm-1 respectively, which induce there is linkage of chemical bond.

所得木质素多元醇通过红外光谱图表明在1750cm-1附近有新的酯羰基生成，并且在1600cm-1含有木质素的芳香环和1110cm-1的聚醚链，表明木质素磺酸钙与聚醚多元醇在互溶过程中有化学键的接合。

Novel rod like phenylene thiophene based polyhydroxy amphiphiles, derivatives of gallic acid combining three hydrophilic 2,3-dihydroxypropyloxy groups and one alkyl chain via central aromatic linking units, have been synthesized by using Ni, Pd(0) catalyzed coupling reaction as key steps.

以Ni， Pd (0)催化的C-C偶合反应为关键步骤合成了基于苯联噻吩的棒状型多羟基两亲性分子，它们是以棒状芳香核为中心部分，一端带三重亲水的2，3-二羟基链，另一端为带一条烷基链的没食子酸衍生物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。