Ein zuverlässiger Weg, um schnell Englisch zu lernen. Ein Teenager reißt ein Blatt Papier ab, auf dem es steht. Eine Fremdsprache auf eigene Faust lernen. - Stockfoto & -bild

Orthoptics. Pleoptics. Doctor explains how to use ophthalmic equipment. Eye training. Vision rehabilitation. Vision recovery.

Children are engaged in creativity with 3D pen

Focused child with 3d printing pen creating a toy

The father carefully fits the furniture boards one to another while the son waits with a cordless screwdriver to screw them together.

New patient hands file folder to doctor . The primary care physician and his room

If the tablet is used by more people, for safety you have to put on rubber protective gloves so as not to get infected. A high school graduate sitting on a bed with a tablet in hand in rubber gloves and a protective mask.

A 10-year-old boy set about screwing together a bookcase with a cordless screwdriver. Young DIYer.

A device for viewing the inside of the human body without dissecting it.

A specialized sewing machine for entrepreneurs who have large orders for fabric.

Any protective mask made of fabric must be ironed before being handed over to the customer.

Any protective mask made of fabric must be ironed before being handed over to the customer.