E. coli bacteria were modified using BioBrick components to produce a warning signal in the presence of arsenic.

他们利用生物砖组件改变大肠杆菌使其在遇到砷的时候发出警告信号。

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You can trap any signal in this way and it can be a good way of ensuring that a program that crashes out is caught and trapped effectively and reported.

可以通过这种方式跟踪任何信号，而且也能很好地确保捕获并有效地跟踪和报告程序崩溃的情况。

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which mean "help me." Frederick Stanley Mockford created the mayday call signal in the nineteen twenties.

VOA: special.2010.04.18

What happens is a negative symptoms are alleviated, and we start to resurrect the signal in this part of the brain.

结果阴性症状得到了缓解，而大脑中这一部分区域的信号,也开始得到恢复。

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In the case of a ligand-receptor, a chemical signal in the form of a concentration of ligand gets converted into a biochemical signal.

在配体-受体系统中,配体浓度这种化学信号,转化为生化信号

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Would each individual person affect the RFID tag's radio signal in a unique way?

ENGADGET: Putting your finger on it

The ultimate test, however, would be to look for a special signal in the CMB referred to as B-Modes.

BBC: The first fractions of a second after the Big Bang

Oberweis Report subscribers got the buy signal in June 2004 and enjoyed Hansens' return of nearly 650%.

FORBES: Another Dose Of Elan With An ETF Chaser