Described herein is a three-dimensional scanning system that features a camera integrated with a user-guided haptic interface device. A dummy gate structure is formed over the fin, in the trench, or on a portion of the planar graphene layer to implant dopants into source and drain regions. And the target identification or object classification can be implemented by this method in terms of color attributes. The said solid fuel no longer presents danger to the surrounding area and groundwater and has an economical energy value. The sliding apparatus may include a connection body having a first end connected to the first body and a second end connected to the second body, and an operator to semi-automatically operate the second body relative to the first body between the first position and the second position.