查询词典 trace

An adsorptive voltammetric procedure for determination of trace copper at alizarin modified carbon paste electrode was described .

报道了采用茜素修饰碳糊电极测定痕量铜的阳极溶出伏安法。

This reaction is also slow, and is carried out in alcohol with a trace of alkali under reflux.

这个反应也慢，在回流下在醇中微量的碱进行反应。

The results showed: the three trace elements all have significant effect on the content of aloin and aloe-emodin.

结果表明：三种微量元素对芦荟体内芦荟苷、芦荟大黄素含量皆有影响。

Result The results showed that the trace element Manganese had significant effect on the root activity and the content of aloin and aloe-emodin.

结果］Mn(上标 2+)对芦荟根活力以及芦荟体内芦荟苷、芦荟大黄素含量均有影响。

The effect of three trace elements on the content of aloin and aloe-emodin in Aloe barbadensis was studied by sandy culture experiment.

本研究采用砂培试验初步探讨了锰、铁、锌三种微量元素对库拉索芦荟中芦荟苷、芦荟大黄素含量的影响。

Human being trace have been spread all over world, including altiplano、 high altitude、 out space and blue water.

随着人类科学技术的进步和人类社会的发展，人类的足迹已经延伸到全球的各个角落，如高空、深海、高原和极地等，而环境因素对健康的影响问题也越来越受到人们的重视。

This article introduced its shape characteristis, inherent nutritional value, health function, trace elements, therapeutic principles, development and utilization of Amaranth.

介绍了苋菜的识别特征、固有营养价值、保健作用、微量元素与食疗原理，提出了苋菜资源的开发利用方向。

Incomplete cover bottom, ambiguously can see use the trace that the transparent tape make up for a mistakes.

残缺的封面下，隐约可以看见用透明胶带补过的痕迹。

A new method has been studied that the trace Pd in ammine medium catalyzes the discoloring reaction between indigo carmine and potassium periodate.

发现痕量钯在氨性介质中能催化高碘酸钾与能红之间的褪色反应，研究了反应最优化条件和动力学参数。

A trace of ammonia in water.

在水中有氨的迹象。

Don't listen to their haver, nothing of that sort.

别听他们胡说八道，根本就没那回事。

But bank's shares trade below their book value, suggesting that investors are skeptical.

但是，银行股票以低于账面价值的价格交易，这一点反应了投资者的怀疑。