求翻译：大三暑期在上海达伟光电有限公司进行专业实习，并成功打磨出成品光学镜片，熟悉掌握了一定的光电相关行业的从业技能。是什么意思？

Scott Photoelectric Co., Ltd., the Haida, the junior summer professional internships, and succeeded in grinding out the finished optical lenses, familiar with the business skills of certain optoelectronic industry.

Big 3 summer in Shanghai Da Wei photoelectric Co. , Ltd. in professional internship and polishing the finished optical lens, which successfully familiarity with a certain amount of PV related industry skills.

Big three summer reaches the great photoelectricity limited company in Shanghai to carry on the specialized practice, and succeeds polishes the end product optics lens, familiar grasped certain photoelectricity correlation profession to be employed the skill.

Junior summer in Shanghai daweiguang electric company for professional practice, and succeed in Polish production optical lenses, opto-electronic industry workers familiar with the mastered skills.