Ten, the plane layout and three-dimensional composition should have a comfortable vision, modeling science and art, the key exhibits should be highlighted and rendered, the whole tone should be harmonious and unified, complementary and complementary, with a sense of wholeness and comfort.Xi. Attention should be paid to the density adjustment, gradient change and color transition as well as the mutual proportional relationship among the three in the physical display, so as to improve the accessibility and malleability of the exhibits as far as possible.12. Dynamic facilities should consider the direction of observation, safety precautions, reasonable and reliable power equipment, and visitor flow and safety factor.