January 20，CCTV News Makes Great Efforts to Create a Series of Live Broadcasting of Popular Science《Top lab》Set sail for a new season，The first appearance is“Shenjiang No.1”Shield machine。Take everyone to explore the secret from zero distance through the lens“King of Construction Machinery”Tiejian Heavy Industry Shield Machine，Closely unlock the main bearing of the world's largest diameter shield machine independently developed by China，Look at China“Strong heart”How to deal with it“World class”Engineering problems！

“Shenjiang No.1”Shield machine

Main bearing of the world's largest diameter shield machine

Heavy weapons of great powers have attracted much attention

As the first year of CCTV news,，《Top lab》The broadcast of the new season has attracted much attention.。Especially the starter“Chinese shield machine”Not only in the CCTV news client、Micro-blog、Tik Tok、Quick hand、Video number、BStation and other full-platform broadcasting。The pilot film was released on Weibo for less than 12 hours.，It has received nearly 30 million readings.，Topic#Iron Teeth, Steel Teeth, Big Country's Heavy Weapons Enlarge at the Bottom of the Sea in the Mountains#，It quickly became the third hot search list on Weibo.。

In more than an hour of live broadcasting.，《Top lab》Keke Hosts Tiantuan, CCTV Host Lao Chunyan、He Yanke，CCTV reporter Li Jingjing，Chen Zheng, an associate professor at the School of Physical Science and Engineering, Beijing Jiaotong University, went deep into the front line of shield tunneling.，Witness together“Steel dragon”Break through the ground。

《Top lab》Koko presides over Tiantuan

The shield machine broke through the earth

The largest underground engineering equipment manufacturing base in the world——Railway Construction Heavy Industry Changsha No.2 Industrial Park，Show the Chinese shield machine.“Custom makeup”Frequent updates，It sells well overseas“Soft power”，And Koko's little experiment.，Did you reveal the secret?“Sharp teeth”How does the shield machine dig through the mountain?、Soil-eating forward“Hard technology”。

Customized cutterhead made by China Railway Construction Heavy Industry Co., Ltd，Shield machine is about to go to Italy

Koko's little experiment：Simulate shield machine“ Tooth ”How to gnaw different“Tough bones”

Koko's little experiment：Working principle of analog hydraulic Jack with four and two sets of Jack

In addition，You also saw the largest diameter in the world so far.、The monomer is the heaviest、Main bearing of integral shield machine with the highest bearing capacity——Independently developed by China Railway Construction Heavy Industry Co., Ltd. Diameter 8.China is the most important weapon in the 61-meter country.“Heart”。

Look “Steel dragon”Dig, dig, dig.，Perception“A great power weighs heavily”Impressive charm。Live at the end，Liu Feixiang, chief scientist of Railway Construction Heavy Industry, told the audience about the key core technology of China's shield machine breakthrough.，From“Foreign money printing machine”To“China competes for Qi”Wonderful“Counterattack”，Let China equip the world。