Fix grammatical errors: To sum up, bar code is an important technology.
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Theanty is a new type of digital code that is used to record and transmit information in the form of a digital code. The code is a digital representation of the information that is stored in the form of a digital code.
- Theanty is a new type of digital code that is used to record and transmit information. The code is a digital code that is used to store and transmit information.
- The code is a digital code that is used to store and transmit information