I took the baby to the new exhibition hall and children's playground on the official micro. I made an appointment from 10 am to 3 pm. I didn't finish shopping. The baby came back when he was tired. The tickets reserved by the official micro in advance are more convenient. You don't need to buy on the spot. You can directly enter the security check. The ID card reserved for two people has been picked up and there is no queue. The hall was crowded early in the morning, comparable to the Spring Festival. I wanted to visit the main exhibition hall first. When I saw that there were many people, I went to the children's playground first. There were relatively few people. The equipment here was relatively new. The place was not very big. It was suitable for 3-7-year-old children. It is estimated that the upper limit will be reached at 7 years old. No matter how big the baby is, it feels boring. At 12 noon, we will start clearing the scene. It is easier to be here in the morning. We went out to the underground to eat, there was a Chinese restaurant and a pizza restaurant, maybe it was a lot of people, health and service were not good, kitchen waste was piled up in the hall for dinner, the clerks were all like to eat or not. In the afternoon, the new exhibition hall is the main exhibition hall. The first floor is ancient technology, the second floor is exploration and discovery, the third floor is technology and life, and the fourth floor is probably technology and the future. We only visited the second and third floors. The overall feeling is that the equipment is old, many are broken, and there are many tourists. Some experience projects need to be queued. I queued up for air bicycles, which took about 10 minutes. The second floor exhibition hall is mostly scientific knowledge such as sound, power, plants and animals, astronomy, etc., divided into AB Hall. The third floor is the application of these knowledge in life, bridge train telephones, etc., there is also a mathematics exhibition hall, divided into ABCD exhibition hall. The first floor and the fourth floor did not go. The overall feeling is that the equipment is relatively old. If you are tired from shopping, you can also go to the restaurant to rest, but from the main exhibition hall to the basement restaurant needs to come out of the floodgate, the staff will give you an invisible seal, you can enter the second time. I turned around in the exhibition hall and didn't find a place to charge my mobile phone. There was no charging treasure to rent. The voice explanation can be scanned with the mobile phone, but you have to bring enough power. It is estimated that this is also a way to reduce passenger flow.