设计处长英文

Department head

chief 与head都过于抽象，具体要看什么处：人事处处长：Director of Department of Personnel销售处处长：Director of Sales Department; 或：Director of Marketing Department后勤处处长：Director of Logistic Section教务处长： Dean of Studies 或 Registrar

section chief就可以，就是部门主管，感觉企事业单位也可以写成section manager。感觉政府部门还是section chief更合适。科长也可以这么叫。

Director

我觉得division chief 更好

副主任 vice minister处长 section chief

希望对您有帮助。设计所所长President of design institute设计所副所长Vice President of design institute副总工程师Vice Chief Engineer技术质量处处长 Chair of technique quality department技术质量处业务主管Business Manager of technique quality department保密委员会办公室主任Chair of committee on confidentiality公司办公室、综合管理处处长 Chair of corporation offices and general management department公司办公室主任Manager of corporation offices财务总监Financial Director财务处处长Chair of financial department