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Artist depiction of the Tianwen-1 Mars mission from China. The lander on the surface of Mars(3d illustration). Some elements provided by NASA.
Macro photo of a temperature probe made of copper in the shape of a spiral with threaded tips, isolated on a white background.
human teeth of gum disease and normal teeth illustration isolated on white background. dental and health care concept
Close up of ultrasonography equipment, female doctor hand, wearing in rubber gloves, holding ultrasound probe with coupling gel prepare for scanning. Special technology button for sonogram.
Dental set: mirror, probe and drill , isolated on white

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