英文简历，大家帮忙翻译一下几句话

experienced in operating CAD
farmilliar with process of sewage treatment
well skilled in how to plan the treatment for the sewage

1.I may skilled operate CAD software
2.I am familiar with the sewage treatment flow
3.How am I extremely familiar design the pollution processing plan

1. Can be skilled handling the CAD software
2. Know sewage treatment technological process very well
3. Know well that how design contaminates very much handling a scheme

proficient in using CAD softwares

be familar with the processes of disposing the polluted waters

has a master acknowledge of designing the plan to dispose the polluted waters

1、I'am proficient in operatting the CAD software.
2、I'am familiar with the flows of sewerage's disposing.
3、I'am accomplished in how to design the projects of disposing the pollution extraordinary.