a danger/warning/distress etc. signal

to detect/pick up signals

探测 / 收到信号

《牛津高阶英汉双解词典》

The siren was a signal for everyone to leave the building.

警报器一响，就是要所有人离开大楼。

《牛津高阶英汉双解词典》

As soon as it was dark, Mrs Evans gave the signal...

天一黑，埃文斯夫人就发出了信号。

柯林斯高阶英语词典

The United manager was to be seen frantically signalling to McClair...

一会儿可以看到曼联主教练拼命地朝麦克莱尔示意。

柯林斯高阶英语词典

to emit a signal

发射信号

《牛津高阶英汉双解词典》

traffic signals

交通信号灯

《牛津高阶英汉双解词典》

His final round was a signal triumph in a career marked by many sweet moments.

最后一场比赛的胜利在他充满欣喜的职业生涯中具有非凡的意义。

柯林斯高阶英语词典

She will be signalling massive changes in energy policy...

她将暗示能源政策会有重大变化。

柯林斯高阶英语词典

a high frequency signal

高频信号

《牛津高阶英汉双解词典》

The first warning signals came in March...

第一次警示出现在3月份。

柯林斯高阶英语词典

Chest pains can be a warning signal of heart problems.

胸部疼痛可能是心脏病的报警信号。

《牛津高阶英汉双解词典》

a radar signal

雷达信号

《牛津高阶英汉双解词典》

TV signals

电视信号

《牛津高阶英汉双解词典》

To im-prove image quality and advance signal-to-noise, it mostly adopts the arithmetic of average frames.

为了改善图像质量,提高信噪比, 多采用多帧平均的算法.

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Signal to Noise Ratio ( SNR ) : The ratio of the signal to the random noise setdata.

全炉膛火焰的燃烧过程伴随着大量动态的随机噪声,这些噪声信号必须消除.

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Instrumental method: the estimate value of LOQ is the concentration when the signal-to-noise ratio is 10:1.

仪器分析方法: 一般以信噪比为10:1时相应的浓度作为定量限的估计值,然后配制相应定量限浓度的样品,反复测试来确定.

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The radiofrequency coil, as firstof the receive chain, is the main factor of signal-to-noise ratio.

而射频线圈作为信号接受链前端, 则是信噪比的决定因素之一.

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All analysis and conclusions build on monopulse radar and high signal-to-noise ratio hypothesis.

所有结论及分析都是在高信噪比假设下针对单脉冲测角体制而言的.

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The specific measures for improvement of signal-to-noise ratio are also given.

着重阐述了提高信噪比的具体措施.

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However, note that reducing the shunt resistance will degrade the signal-to-noise ratio.

然而要注意减小分流电阻会 降低信号 噪声比.

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