I found a solution; it's not perfect at all but it will do the trick until I find something better.

1. First I connect to my admin account and I set my admin language to French.
2. I import all my products with the French names into OpenERP.
3. Once this is done I export all my products with their French name from OpenERP to a csv. In doing this I get a product's "id" coupled with the item "name" (in French).
4. In my csv I change the French item "name" with the Dutch one.
5. I connect myself as the admin on OpenERP and change the Admin language to Dutch.
6. I import my newly created csv file (with "id", "Dutch name").
7. It works, my products have a translation now.

I know it's a real pain to do all this to insert my products with two translations but I have not found an easier way to do it. It could probably be done by inserting data directly into the database but this is something I would rather not do (I am afraid I would break the database).

Hi

I also worried a lot about this problem and finally found the following comfortable solution.

1) import your products with english or whatever language descriptions you like first

2) create individual csv-files for every language with the following structure:

module,type,name,res_id,src,value
"your_modulname","model","product.template,description","your_modulname.your_template_id","source-value Text","translated-value text"

3) start the following command to import the language-files in the console when server is stopped:

/path_to_your_openerp-server_file/openerp-server -c /path_to_your_openerp-server_config_file/openerp-server.conf --i18n-overwrite --i18n-import=/path to your translated csv file/de_DE.csv -l CORRECT_OPENERP_LANGUAGE_CODE -d $NAME_OF_YOUR_DATABASE