non-print code

例句：

1. 1. This non-print code is a unique encryption method used to secure sensitive information.
   这种非打印代码是一种独特的加密方法，用于保护敏感信息。
2. 2. The researchers discovered a new way to decode the non-print code, which could potentially break the encryption.
   研究人员发现了一种新的解码方式，这可能会破解加密。
3. 3. In this case, the non-print code was used to protect the confidential information during transmission.
   在这种情况下，非打印代码被用来在传输过程中保护机密信息。