查询词典 a trace

So the paper is mainly study the rapid detection of pesticide with electrochemical and solid phase extraction techniques.A Single-sweep polarography was described for the determination of trace dichlorvos with sodium perborate and benzidine. The detection limit and the linear range were 1.0ug /mL and 3.0ug/L~7.5mg/mL (R2=0.9992) respectively.

利用敌敌畏可以催化过硼酸钠氧化联苯胺反应的特性，建立测定DDVP的单扫描极谱分析方法，此方法的灵敏度高，其对应的线性范围是3.0μg／L～7.5mg／L(R~2=0.9992)，检测限为1.0μg／L。

In the best condition of headspace and chromatogram, the mensuration of aquatic trace volatile can get a satisfaction result such as chloroform , carbon tetrachloride , trichloroethylene and perchlorethylene, all relativity standard deviation RSD is less than 4%,all the correlation coefficient R is larger than 0.99, and the relative error is less than 3%.

在选择最佳的顶空和色谱条件下，测定水中痕量挥发物三氯甲烷，四氯化碳，三氯乙烯和四氯乙烯可获得令人满意的结果，相对标准偏差RSD均小于4%，相关系数R均大于0.99，相对误差小于3%。

The larger isolated sandstone body of delta in southeast part of the study area has obvious oil and gas shows on the figures of instantaneous amplitude, frequency, phase, trace integral. It should be a significant target for future hydrocarbon exploration.

本文通过地震资料特殊处理(瞬时振幅、频率、相位和道积分等)，对研究区东南部的一个孤立的大型的三角洲砂体进行了含油气检测，发现具有明显的异常显示，因而是值得进一步勘探的重要目标。

The present work describes a new method for trace Co preconcentration and separation using microcrystalline phenolphthalein as an adsorbent coupled with the determination of spectrophotometry.

建立了一种以微晶酚酞作为固态吸附剂对样品中痕量的Co分离富集的新方法，富集后的co可直接用光度法测定。

A new anaytical method for direct thin layer resin phase spctro photometry determination of trace iron has been developed.

本文研究了利用薄层树脂相通过光度法测定痕量铁的新方法。

Mom and I along the stairs up the stairs, came halfway up the mountain, I found mountains and golden leaves, pick up a few pieces from the floor, swept along by the top of the soil, green and red dots trace views are so full of vitality.

我和妈妈沿着台阶拾级而上，来到了半山腰，我发现满山金黄的枫叶，从地上捡起几片，吹去上面的泥土，绿中透着点点红意，是那么的富有生命力。

A new century is coming nearer and nearer, Leslie still stand on the top of the hill like an ever-green pinetree. Time didn't leave any trace on his face, while his inner eye expressions and his impeccable perforance prove silently of the charming increase as years go by.

眼看着这个世纪就过去了，哥哥仍然如青松傲立于山峰，岁月没有在他的脸上留下任何痕迹，只有那内敛的眼神和日臻完美的演技无声地印证着风雨洗礼后的他韵味更加醇厚动人。

A new century is coming nearer and nearer, Leslie still stand on the top of the hill like an ever-green pinetree. Time didn't leave any trace on his face, while his inner eye expression_rs and his impeccable perforance prove silently of the charming increase as years go by.

眼看着这个世纪就过去了，哥哥仍然如青松傲立于山峰，岁月没有在他的脸上留下任何痕迹，只有那内敛的眼神和日臻完美的演技无声地印证着风雨洗礼后的他韵味更加醇厚动人。

Ginseng contains a large number of Ginsenoside and saponins trace minerals, is an excellent natural skin care plante.

人参中含有大量皂甙及微量矿物质，是优良的天然护肤佳品。

It is the trace of a pomp, of course!

这是一个泵的踪迹，当然！

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％。