略字 りゃくじ方式 ほうしきコードでしょう
ryakujihōshikikōdodeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 略字方式コード

1. Abbreviated code method, likely.; Probably an abbreviated code.

Polite
Presumptive
Conjecture
Computing