languages within cb query field

the underlined must be the translation, but as you said, it does not work

You have to translate the entire Header parameter as needed. You can do this using language overrides below.

www.joomlapolis.com/blog/kyle/18701-language-overrides-have-arrived

Latest CB Query Field will pass the column results through language translations so if the result of say [column_my_column] is MY_LANGUAGE_KEY then that will be passed through translations fine. Further example as follows.

Query
Column: my_column
Usage: [column_my_column]
Result: MY_LANGUAGE_KEY

Translations
Key: MY_LANGUAGE_KEY
Text: Hello World!

The result of using [column_my_column] in Header would be "Hello World!".

I did as you said but it still does not go!

You did not do as I've instructed. Please read my previous reply carefully. Please see another example as follows.

Database
Column: my_column
Substitution: [column_my_column]
Value: THIS_IS_A_TEST

Overrides
Language Key: THIS_IS_A_TEST
Language Text: Pass!

The column queried for is my_column. It's substituted in using [column_my_column] and the value stored in the database is THIS_IS_A_TEST. THIS_IS_A_TEST is ran through translations. I've manually created a language override for language key THIS_IS_A_TEST to display "Pass!". In the query field it will display as "Pass!".

I do not know what more to tell you. The best way to translate this is to translate the entire header parameter and put your language string directly in it. I've no idea why you stored a language string or what you're really even trying to do with your stored data, but I've no idea how to further explain this to you, sorry.