You can integrate the free Artificial Neuronal Network based Machine Translation engine of the German/Chinese online dictionary DeHanCi.com in OmegaT:
~/.omegat/plugins
sl
tl
st
To gain access to the DeHanCi.com API, please write to the DeHanCi team, kontakt@dehanci.com
Here is a sample file: beispiel.odt
Please note: As the name suggests, the DeHanCi.com provides translations from Chinese to German and from German to Chinese only.