造诣较深 meaning in Chinese

of great attainments
of high attainments

My special field is industry and civil engineering , and i am adept at technical management and consultation of engineering , especially at cost consultation and supervisement . on the other sied , i excellently manages a staff of 48 professional employees
本人专业为工业与民用建筑，从事工程技术管理咨询工作，尤其对建筑工程的造价、监理、造诣较深，并出色管理一批48人专业队伍。