Recently, the domestically produced Yuanwang 21 and Yuanwang 22 rocket transport ships were unveiled together. As China's new generation of rocket transport ships, Yuanwang 21 and Yuanwang 22 are different from the Yuanwang series survey ships that have been installed before. They are mainly used for the sea transportation of large rockets. Because of their tall and mighty appearance, they are called China's giant sea monsters. The timing system equipped on these two ships is the Polaris ship mother-and-child clock system developed and produced by our company. Previously, as the timing equipment supplier of the Yuanwang series survey ships, our company has won the trust of users with its excellent quality. It has provided the Yuanwang family with automatic control mother-and-child clock timing systems many times, and has participated in various aerospace scientific research missions in my country with the Yuanwang series survey ships. At present, these two well-equipped and technologically advanced survey ships have been delivered and put into use. With the upcoming commissioning of the Wenchang Rocket Launch Center in Hainan, China, Yuanwang 21 and 22 will be put into operation at a high frequency to ensure the comprehensive advancement of China's space launch missions. Polaris will continue to help the rapid development of China's aerospace industry.