查询词典 trace

Trace bromate in drinking water was determined by ion chromatography with suppressed conductivity detector.

摘 要：采用抑制电导离子色谱法检测饮用水中的痕量溴酸盐。

A novel method for the determination of trace bromate in water is proposed which employ GC-ECD. The derivative process with acetylacetone is optimized.

研究了用GC-ECD测定水中痕量溴酸盐浓度的方法，优化了用工程丙酮作溴酸根衍生化试剂的反应条件。

Objective: To develop a method for the determination of trace bromate in drinking water by high performance ion chromatography with large volumn direct injection.

目的：建立一种简单快速，采用直接大体积进样，电导检测饮用水中痕量溴酸盐的高效离子色谱法。

Aim To study the determination of trace bromide by the method of catalytic kinetic determination.

目的 研究测定溴离子的催化动力学分析方法。

We can trace the line of human progress far back towards brutishness; finding as we go back the noble faculties peculiar to man weaker and weaker in their manifestations, producing less and less effect,-at last scarcely any effect at all- upon his position and habits.

我们可以溯人类进化之路回到如野兽般的人；发现当我们回到人类独有的高贵本领在他们的表现中越来越弱，生产效力越来越低，最后几乎根本没有任何效力时，他的处境和习性。

Observers began to note the emergence of identifiable facial features and one can trace the reaction in contemporary magazines such as Road and Track to such nicknames as the 1948 'fishmouth' Oldsmobile or the 1950 'bucktooth' Buick.

观察者开始记录识别性前脸特征的出现，人们可以在当时的杂志例如 Road and Track 上追溯车辆衍变的轨迹，例如绰号为fishmouth的1948年 Oldsmobile和 1950 年的'bucktooth'别克。

Water purifiers in a variety of tap water to remove harmful substances and pollutants at the same time, the human body retains the beneficial minerals and trace elements, to capture the bulk water due to long storage time easy to breed bacteria, and shorter shelf-life problems .

净水器在去除自来水中的各种有害物质和污染物的同时，保留了对人体有益的矿物质和微量元素，攻克了桶装水因存放时间久容易滋生细菌、保质期短等难题。

If we must trace back to its origin, I think those live in ancient ancestor, as them or someone of them, bungle to another stone with one stone, in order to produce the tool which have a certain function, design is produced naturally at the time of this.

如果我们一定要追溯它的起源，我想，那些生活在远古的先人们，当他们或者他们当中的某一个人，用一块石头砸向另一块石头以便打造出具有某种功能的工具时，设计就在这一瞬间自然而然的产生了。

Both buttercup and butterfly trace their origins to a common ancestral disturbance, a shared impossibility we call life.

金凤花和蝴蝶都产生于一个共同的祖先，由于其祖先在进化过程中受到干扰，就产生了金凤花和蝴蝶。

The method can be used for determining the trace amount of cadmium in water samples with satisfactory results.

将该方法用于实际水样的测定，结果令人满意。

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。