So to you, this looks like a visual mating display.

你眼中的它只有视觉上的求偶行为。

It wasn't until 1786 that William Playfair invented the first bar chart, giving birth to visual display of quantitative information.

直到 1786 年， William Playfair 发明了第一张条形图，才诞生了量化信息的可视化显示。

Brazilian zoologist Fabio P. de Sa witnessed Brazilian torrent frogs using eighteen different visual displays, five of which had never been seen before in other frogs.

巴西动物学家法比奥·德萨就曾亲眼目睹巴西湍蛙使用18种不同的可视信息，而其中5种在其它青蛙中从未出现过。

One thing we can sort of suggest is that animals that clearly have visual display organs, thing on their body, is that they probably use them.

我们大概能够推断这种动物有明显的视觉展示器官，是它们身体的一部分，而且很可能会用到它们。

The case transmits the data via bluetooth to an app on the smartphone, which computes the blood pressure and provides a visual display to guide the user and show results.

该案例通过蓝牙将数据传输到智能手机上的应用程序，该应用程序计算血压并提供视觉显示来指导用户并显示结果。