Surveying and mapping is a very important link in the restoration of historical buildings, and many tools need to be carried to the site for surveying and mapping, which makes the surveying and mapping process somewhat inconvenient. Therefore, simplifying tools makes surveying and mapping more lightweight and professional.
When expectant mothers give birth to premature infants due to personal and environmental factors, the babies often need to stay in the infant incubator for a long time. Base on reserch, premature infants are more likely to have tactile sensitivity reactions. The first two years of life are the best time for preterm babies to develop their emotional and cognitive abilities, and accompanying play is the best way to train them.In this design, a series of sensory balls are designed for the baby at this stage to do sensory training.
