Two-tone facias are dark at the top and light lower down to increase the sensation of light and space.

双音令状是黑的顶部和低光下，以增加光线和空间感。

youdao

A sensation of light caused by excitation of the retina by mechanical or electrical means rather than by light, as when the eyeballs are pressed through closed lids.

压眼闪光，光幻视：通过机械或电子途径而不是通过光使视网膜兴奋从而感受到光，如当眼球被紧闭的眼脸压迫时。

youdao

Color is the sensation that is invoked when light of wavelengths between 360nm and 720nm hits our eyes and then is processed by our visual system [3].

颜色是360 nm至720nm之间的光波刺激人类的眼睛并由视觉系统[3]进行处理后所触发的感知。

youdao

Opened in April 2012 to mark the centenary, the new Alpine Sensation, a 250m journey of discovery, whizzes through the history of the Jungfraubahn railway with light and sound effects, projected photos and a giant snowglobe.

BBC: Search the