单词	effective relative aperture
释义	effective relative aperture 有效f数
随便看	contract managementappraisal contract management district Contract Management Division Contract Management for Contract Construction contract management information Base contract management of enterprises contract management office contract management of the project contract management region Contract Management Review Contract management right contract management software contract management system contract manager Contract Manpower Equivalent contract manufacturer contract manufacturing contract marital therapy contract market contract marquee contract marriage Contract Matrix Contract meaning contract measure contract mechanism