contact lenses; a thin lens placed directly on the surface of the eye to correct vision

invisible man; invisible person

Technology used to make aircraft, missiles, or ships difficult to detect by reducing radar reflection, infrared radiation, and noise; also called [[隐身技术|隱身技術|yin3 shen1 ji4 shu4]]

An aircraft designed to be difficult to detect by radar, infrared, and other electronic means; also known as [[隐身飞机|隱身飛機|yin3 shen1 fei1 ji1]]