Or, at least, a visual warning to other toucans.

或者，至少它是向其它巨嘴鸟发出的一个视觉警告。

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The laser provides a visual warning to not come any closer.

该激光从视觉上警告海盗不要再继续靠近船只。

youdao

For example, SoundSentry displays ICONS and other visual cues to indicate that the system has sounded an alarm or other warning.

例如，声音卫士显示图标和其他可视化提示来指示系统已经发出报警或其他警告。

youdao

This assistance system gives the driver a visual and acoustic warning of recognized obstacles, prepares him for braking action and assists him with the braking process as the situation requires.

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While I understand and appreciate all the ways that moving averages can be misused, I also understand that this visual can be an excellent warning side for traders to step aside or change sides in the battle.

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