Initialism for amyotrophic lateral sclerosis, a progressive neurodegenerative disease.

肌萎缩侧索硬化症（渐冻症）的缩写，一种进行性神经退行性疾病。

Initialism for approach lighting system, runway lights for landing guidance.

进近灯光系统的缩写，用于引导飞机着陆的跑道灯光。

Initialism for ambient light sensor, a device measuring surrounding light.

环境光传感器的缩写，用于测量周围光照强度。

Initialism for advanced life support, advanced resuscitation and emergency care.

高级生命支持的缩写，高级复苏与急救处置。