Invisible ink
Invisible ink, also known as security ink, is a substance used for writing, which is invisible either on application or soon thereafter, and can later be made visible by some means. Invisible ink is one form of steganography.
Secret ink
英语百科
- superior lingular segment的意思
- superior lip的意思
- superior lip of ileocecal valve的意思
- superior listening ability的意思
- superior lobar branch的意思
- superior lobar branches的意思
- Superior lobe的意思
- superior lobe of left lung的意思
- superior lobe of right lung的意思
- superior longitidinal muscle of tongue的意思
- Superior longitudinal fascicle的意思
- Superior longitudinal fasciculus的意思
- superior longitudinal fasciculus of cerebrum的意思
- Superior longitudinal muscle的意思
- superior longitudinal muscle of tongue的意思
- Superior longitudinal sinus的意思
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- superior macula cribrosa的意思
- superior macular arteriole的意思