warning signal

基本解釋

E. coli bacteria were modified using BioBrick components to produce a warning signal in the presence of arsenic.
他們利用生物磚組件改變大腸桿菌使其在遇到砷的時(shí)候發(fā)出警告信號(hào)。
This adds yet another layer of complexity to control efforts and removes the warning signal for humans to avoid risky behaviours.
這就使控制疫情的努力更趨復(fù)雜，使人類難以察覺(jué)避免危險(xiǎn)行為的警示信號(hào)。
Klopper said he was unaware of details, but past speculation has included sonar buoys able to identify sharks and transmit a warning signal.
發(fā)言人克勞普說(shuō)他不知道具體細(xì)節(jié)，但是之前傳聞內(nèi)容涉及聲納浮標(biāo)，它能夠識(shí)別鯊魚(yú)并傳出警告信號(hào)。

But that whistling past the graveyard ignores the bright flashing warning signal that Romney has reaffirmed.
FORBES: Can Big Bird Save Patient Safety Agency?
Generally, a bearish momentum divergence is a red flag warning signal, which often presages a pullback or correction.
FORBES: Home Builders Could Become Heartbreakers Again
Until the last two years, that was always a very important warning signal.
FORBES: Don't Be A Lemming, Keep Cash In Your Portfolio