查询词典 trace

Our traditional friendship between the people of two countrys can trace back to remote foretime.

我们两国人民之间的传统友谊，可以追溯到遥远的过去。

Selenium is the bodys immune system fortifier, also be a kind of very good cancer, cancer of the trace element.

硒是人体免疫系统的强化剂，也是一种很好的防癌、抗癌的微量元素。

Krypton occurs in trace amounts in the atmosphere and in rocks and is obtained by fractional distillation of liquefied air.

在大气和岩石中只有极微量的氪，可以通过液态空气的分馏来得到它。

Krypton occurs in trace amounts in the atmosphere and in rock s and is obtained by fractional distillation of liquefied air.

在大气和岩石中只有极微量的氪，可以通过液态空气的分馏来得到它。

Spectral analysis of soil trace elements is based on fractional distillation of the element being detected in electric arc plasma.

本法根据被测元素在电弧等离子体中的分馏效应原理，选择合适的电极规格和内标缓冲剂，对土壤微量元素进行定量测定。

Obtained by fractional distillation of liquefied air, it is used in luminescent tubes, flash lamps, lasers, and trace r studies and as an anesthetic.

用于频闪仪和高摄影术所用的极短促而强烈的闪光灯中。氙闪光灯已用于活化红宝石的激光器。仅与氟和氧化合生成。

The distribution and fractionation of Rare Earth Element are the base for their usage as trace elements.

稀土元素在环境中的分布分异机制，是研究其作为地球化学示踪剂的重要基础和必要前提。

While retrieving the column density of trace gases with the scattered sunlight as light source,it will be affected strongly by solar Fraunhofer lines,which is also called Ring effect.

被动DOAS中利用太阳散射光作为光源解析大气污染气体柱浓度时，会受到太阳弗朗和费光谱的"填充线"即Ring效应的强烈影响，尤其是对浓度很低的痕量气体，致使不易获取其浓度、影响其测量精度。

MethodsThe atomic absorption spectrophotometry and sulfurcarbon detector were used to determine 16 trace elements in 10 species of Fritillaria origin of determination.

方法利用原子吸收分光光度器和定碳定硫器对10种产地贝母中的16种微量元素进行了测定。

Mercury fulminate may contain trace of mercuric oxalate.

雷汞中可能含有微量的乙二酸汞。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。