traces

A newly-developed microdistribution analysis method for trace elements——synchrotron radiation X-ray fluorescence analysis is introduced.

本文介绍了一种新型微量元素微区分析方法——步辐射X射线荧光分析法。

We traced the trouble to a faulty transformer.

我们查出故障出在一个有毛病器上。

Kelp is rich in vitamins and trace elements.

大型褐藻富含维他命和微量元素。

The contents of trace elements and mesne elements changed gently in the growing season.

中量元素和微量元素含量随着生长有所增加，但是波动不大。

There was not a trace of cynicism in his voice.

他语气里没有一丝挖苦。

He traced the words with a shaking hand.

他用颤抖手写下那些字。

There are traces of poison in the fish.

这种鱼体内有微量毒素。

Paw print, or pugmark, tracing is another common technique for counting tigers.

爪印和老虎足样是常用计算老虎数量方法。

Even the youngest child can trace over the shapes of the letters with a pencil.

即使小孩子也能用铅笔描出字母。

The seeds contain hydrocyanic acid and a trace of a toxalbumin.

种子包含氢氰酸和微量毒白蛋白。

All trace of his working-class background was deliberately obscured.

他工人阶级出身所有痕都给有意地隐藏起来了。

The family has traced its ancestry to the Norman invaders.

这个家族将自己世系追溯到诺曼征服者。

It leaves no trace after fire extinguishing.It replaces for alkylogen annihilator.

灭火后不留痕，是取代卤代烷灭火器替代品。

Trace an analogy between pastoral poetry and landscape painting.

找出田园诗和风景画之间相似之处。

The bed bore traces of having been slept in.

那张床上留有被人睡过痕。

They feared some undetected trace of poison.

他们担心一些未被识破投毒痕。

Age has left its traces on her face.

岁月在她脸上留下了痕。

Bob's book traces his flying career with the RAF.

鲍勃书追溯了他在英国皇家空军飞行生涯。

His family traces back to the Norman Conquest.

他家世可追溯到诺曼人征服英国时代。

The custom traces to the time of the Warring States.

这个风俗可上溯到战国时期。