I hope to add support for Chinese in "parts" and "adjustment" in the vehicle configuration interface. So much English makes me unable to start. Using machine translation does not necessarily guarantee the accuracy of translation.
Neither of the translations for Chinese are finished yet. If you would like to contribute, you can at translate.beamng.com Keep in mind that all of the translations outside of English are maintained by the community and might not be correct. However, if it isn't fixed when the Chinese translations are finished, then I think you might have to modify the parts names manually in the game files and manually translate it to Chinese.