A client application can have results from a query returned that are translated into the user’s language, using toLabel():
toLabel(object.field)
Use toLabel() on regular, multi-select, division, or currency code picklist fields (any field that has picklist values returned by the relevant describe call), or RecordType names. Any organization can use toLabel(). It is particularly useful for organizations that have Translation Workbench enabled.
SELECT Company, toLabel(Recordtype.Name) FROM Lead
This query returns lead records with the record type name translated into the language for the user who issued the query.
You can use toLabel() to filter records using a translated picklist value. For example:
SELECT Company, toLabel(Status) from LEAD WHERE toLabel(Status)='le Draft'
Lead records are returned where the picklist value for Status is 'le Draft.' The comparison is made against the value for the user’s language. If no translation is available for the user’s language for the specified picklist, the comparison is made against the master values.