Thanks people for all the suggestions...I just wanted to make a point.
I graduated in mechanical engineering this year...but while I was studying - and it took me seven years to do so - I worked 7 years in RELEVANT jobs (4 of which I was working as a sales engineer for a major French company in Syria which I'm still working for)...why I can't include my experience under the heading "professional experience"?..I have a certification from the company in France..isn't that a good advantage?...other two years of my career I was working as a technician for a Japanese Imaging company..the other two I was a plant manager...what I'm trying to tell that I wasn't working in jobs completely irrelevant with my academic background and the jobs that I would apply to..I'm completely positive about being honest in my CV...I didn't post a question about honesty...I'm worried about adding the word part-time would downplay my professional background...that's the gist of my question. I can explain that in the interview or the phone interview. I'm not try to be deceptive here...I just don't want my CV to be neglected because of the word part-time. THX