With the objective of preventing variations in sensitivity even if samples to be inserted between an upper coil and a lower coil opposite to each other are different in body frame, a pre-scan is effected on a sample in a state in which the sample is placed in a space defined between the upper coil and the lower coil, and reflected waves sent from the coils are detected by a directional coupler. More specifically, the system and method object of the invention are particularly applicable for identifying those areas that comply with said sustainability requirements. A vacuuming source is connected to the discharging end of the collecting conduit to provide a reduced pressure within the collecting head for collecting cells removed from the treating skin surface. The lateral side of the body has protrusion and the clipping device comprises a positioning element and a pivot connection to the securing element or a fastening element having elasticity being extended from the positioning element such that when the clipping device clips to the body, the spectacle is provided with an illumination effect. Even when the reduction mechanism is used in an engine room or the temperature of the reduction mechanism is raised by frictional heat with heightening power, the reduction mechanism is durable, and further the gears have excellent abrasion resistance and toughness and improved durability.