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Pretranslating only specific segments to avoid crashes with large files being machine translated

Screenshot of Trados Studio software with the Settings dialog open, showing Pre-Translate Settings. A comment box highlights an issue with machine translation engine causing crashes and suggests a feature to lock pretranslated segments to avoid this. Analysis statistics are circled in the bottom right, showing a large number of total segments.

Please read my comment in the screenshot. Thanks
Sameh Ragab

Sameh Elsharkawy