CLEAN : The Queen marks 20th anniversary of Channel Tunnel

The video tutorial covers the significance of national stations, practices at service stations, and the development of high-speed railways. It provides insights into the 2014 high-speed war and discusses Eurotunnel's role in the commencement of rail services.

What is the significance of the national station mentioned in the text?

What does the practice at every service station entail?

Describe the high-speed railway mentioned in the text.

What event occurred in 2014 related to high-speed rail?

What role did Eurotunnel play in the development of high-speed rail services?