Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health.

欧文斯和奥尔森假设，如果类胡萝卜素是稀有的或对健康有要求的，则通过着色指示的类胡萝卜素的存在在配偶选择的背景下将是有意义的。

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Signaled by periodic time interval.

由定时时间间隔触发信号。

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signaled by the amount of collected withdraw Kanbans

由收集到的领取看板的数量触发信号

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Aces, set and match points are signaled by a moving graphic display which circles the entire arena.

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However, the power only lasts a few seconds, as signaled by the fading brightness of the light.

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The Airbus A330 went into a sustained stall, signaled by a warning message and strong buffeting of the aircraft, the report said.

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