September 17，China Central Radio and Television StationCGTNAnnual documentary series《Surging China》The second episode《Sea of change》Heavy launch，The video stands on the important historical node of the 75th anniversary of the founding of New China.，With“Foreign hosts visit and observe+Documentary stories of vivid characters+Expert comments”The form of，Focus on the world's longest high-speed rail submarine tunnel Shield Machine in a new perspective“Dinghai”And“Yongzhou”，Unlock the password of a great power's heavy weapon，Redefine with technology and innovation“Made in China”。