Numbers in subway cars Do you know what you mean?

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Numbers in subway cars Do you know what you mean?

Numbers in subway cars Do you know what you mean?

In the process of taking the subway

Surely everyone has noticed the number of train compartment connections

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Numbers in subway cars Do you know what you mean?

What do these numbers mean?

In the course of our subway commuting,

What can it do?

The railway technician school has prepared detailed diagrams for everyone.

You can see at a glance

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Numbers in subway cars Do you know what you mean?

Everyone needs emergency assistance in case of an emergency,

You can only tell clearly The worker's number,

staff can arrive on time!

——From "Xi'an Metro"