对苯二酚

Pyrocatechol and hydroquinone, as important raw material intermediates in fine chemical industries, are used in many fields.

邻、对苯二酚是重要的精细化工原料中间体，用途非常广泛，市场的需求量很大。

The method is simple, fast, and was applied to the determination of hydroquinone in waste water with satisfactory results.

方法简单快速，直接用于污水中对苯二酚的测定，结果令人满意。

A novel and simple spectrophotometric method for determination of hydroquinone with 1,2-naphthoquinone-4-sulfonate reagent was developed.

建立了用1，2-萘醌－4-磺酸钠分光光度法测定对苯二酚的新方法。

The kinetics s parameter of hydroquinone on the Cu-PB film modified electrode was also discussed.

计算了对苯二酚在Cu-PB膜修饰电极上电极过程的动力学参数。

Linear relationship was kept between absorbance and concentration of hydroquinone in the range of 3.5×10^(-6)~5.0×10^(-4)mol?

对苯二酚的吸光度与其相应浓度在3.5×10^(-6)~5.0×10^(-4)mol？

Tons; acetone 4,000 yuan / ton; hydroquinone 15,000 yuan / ton; natural gas (6 Pressure) 2600 yuan / ton.

吨；丙酮4000元/吨；对苯二酚15000元/吨；天然液化气(6个压)2600元/吨。

Topical treatments include a number of options, including hydroquinone, arbutin and kojic acid, which are more well known.

局部治疗包括了多个方案，包括对苯二酚，熊果苷和曲酸，这是更广为人知。

Mandelic acid may be used in lieu of hydroquinone or in conjunction with it for optimal benefit in individuals who are able to tolerate the combination.

扁桃酸，可用於代替对苯二酚，或在与它为最优，在个人的利益谁能够容忍的组合。

Hydroquinone has been banned in several countries.

一些国家已经禁用对苯二酚。

In this study, alkylhydroquinone, 10'-heptadecenylhydroquinone [HQ17(1)], isolated from the sap of the lacquer tree Rhus succedanea, was found to inhibit the activity of tyrosinase and to suppress melanin production in animal cells.

在之前的研究中，我们已经由漆树Rhus succedanea的漆液中萃取纯化得到的一个对苯二酚衍生物，此衍生物在第二个碳的位置有17个碳的不饱和碳链，根据其化学结构命名为10′–heptadecenylhydroquinone，并简称为HQ17(1)。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷