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International Standard ISCO OIT 2017-05-12 2017-05-12 18:59:56 en Science and Engineering Associate Professionals31 Science and engineering associate professionals perform technical tasks connected with research and operational methods in science and engineering. They supervise and control technical and operational aspects of mining, manufacturing, construction and other engineering operations, and operate technical equipment including aircraft and ships. Competent performance in most occupations in this sub-major group requires skills at the third ISCO skill level. Profesionales de las ciencias y la ingeniería de nivel medio 2017-05-14 13:59:512017-05-14 16:26:30