Unbelievable! The sea is full of water, how is the undersea tunnel built?

For a long time, human beings have never stopped exploring the ocean. Nowadays, although human beings have not completely conquered the vast ocean, they have made many achievements. #megaprojects #construction#tunnel #subsea ------------------------------------------------ Related Link🔗: China's Mega Bridges Shocked American President    • China's Mega Bridges Shocked American Pres...   China's Megaprojects That Leave Americans in Awe    • China's Mega projects That Leave Americans...   Amazing Mega Projects In The World, You Won't Believe Exist    • Video   California's Mega Dam Gave The Chinese Engineers Goosebumps    • Video   The $1 Trillion Mega Project, The Line Actually Begins Construction    • Video   The Bravest Workers in China - Doing the Most Dangerous Jobs    • The Bravest Chinese Workers, They Build Ro...   Top 10 Most Dangerous Roads In The World That Will Leave You Breathless    • Most Dangerous Roads In The World That Wil...   The Daredevils of China, Houses Built on Cliffs - You Won't Believe    • China's Houses Built on Cliffs, You Must N...   Unbelievable Bridges in The World That Are On Another Level    • Video   China's Engineers Gave The Japanese Prime Minister Goosebumps, Mega bridge construction    • China's Engineers Gave The Japanese Prime ...   Most Terrifying Bridges In The World, Walk on It Will Give You Goosebumps    • Video   The 17-Year Mega Project, Building The World's Longest Tunnel    • The 17-Year Mega Project, Building The Wor...   The Chinese Caveman's Ultimate Makeover, Turning a Cave into a Lavish Apartment    • China's Mega Project: The Chinese Caveman'...   Unbelievable Mega Project, China Builds World's Tallest Bridge    • Unbelievable Mega Project, China Builds Wo...   China Builds Oddly Bridge, You Have Never Seen Before    • China Builds Oddly Bridge, You Have Never ...   Incredible Chinese Mega Project! It's Actually Happening    • Incredible Chinese Mega Project! It's Actu...   The Secret of Chinese Bridge Construction Technology & China's Speed Amazes The World    • The Secret of Chinese Bridge Construction ...   China's Fastest Mega Bridge Construction Technology Shocked German Engineer    • China's Fastest Mega Bridge Construction T...   China Built A Mega Projects In The Mountains, American Experts Still Can't Believe Its Existence    • China Built A Mega Projects In The Mountai...   How Did The Chinese Build The Road On Cliffs? Incredible Mega Projects    • How Did The Chinese Build The Road On Clif...   How to Finish China's Tallest Skyscraper    • Video   Note: If you have a good idea for a video, leave us a comment! We try to read each and every comment made.