Many families often ignore the need for reasonable lighting when choosing lamps and light sources, and design the lights colorfully for romance and luxury. As everyone knows, colorful lights in addition to the great harm to human vision, but also interfere with the brain's central nervous system function. Light pollution has a greater impact on infants and children. Stronger light will impair the eyesight of infants and children, and affect children's vision development. Relevant health experts believe that the main reason for the formation of myopia is the visual environment rather than eye habits. To create a “green environment†that is environmentally friendly, healthy, energy-efficient, and beautiful and comfortable, in addition to the principles of beauty, safety, and economy, we must also consider the following principles: Reasonable function: According to different space, different occasions, different objects choose different lighting methods and lamps, and ensure the appropriate illumination and brightness. For example, the bedroom should be warm, the study and kitchen should be bright and practical, and the bathroom should be warm and soft. Coordinating and matching: When choosing and designing lighting and lamps, one must consider the coordination of lighting and furniture. To purchase lighting, consider the harmony with interior decoration style and furniture style. The color, shape and style of the lamps and lanterns must be commensurate with the interior decoration and the style of the furniture, echoing each other. Fancy lighting not only does not add icing on the cake, but it is superfluous. The second is to pay attention to the size of lamps, room size, total area, indoor height and other conditions to coordinate, choose the size, type and number of lamps. The third is to pay attention to the coordination of colors, that is, cool colors and warm colors may depend on the use. Scientific and rational: To avoid glare, to protect vision, improve work and learning efficiency; To reasonably distribute the light source, the light irradiation direction and strength should be appropriate, avoid direct eyes. Keep stable lighting, light is not dark or bright when it is dark. Lamps and lanterns to buy lamps brand furniture brand furniture lighting interior decoration space lighting decoration style study furniture bathroom design study layout bathroom size home layout bedroom lamp decoration home
Overshot go into the heart of the drill pipe, the slider move up, make the tube socket head can be inserted into the center, when on the slider move up tight, using friction lift drill, remove loose again after the slider, by means of the connection string to slide along the block should tighten, set aside the center pipe, but in front of the salvage must first determine the bit in the bottom of the hole position, can be in a thin plate with bolts tight end of drill pipe, Drop the drill pipe to the bottom of the hole and press it on the drill bit. After waiting for a moment, it is proposed that the relative position of the drill bit at the bottom of the hole and the center of the rotary plate of the drill can be determined by observing the indentation left by the center pipe of the drill bit on the board, and then move the drill or rotary plate so that the center of the rotary plate is directly in front of the center pipe of the injured head, so as to ensure that the fishing device can be inserted into the center pipe accurately.
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