单词	mounting of pulleys
释义	mounting of pulleys 学滑轮安装
随便看	directorate of support services Directorate of System Engineering directorate of system management directorate of systems services directorate of technical support Directorate of Training directorate of training developments Directorate of Underwater Weapons directorate of works Directorate Rate Indicator directorates directorates for inter-services intelligence directorates-general directorates of launch operation directorate structure directorate system direct oration direct orbit director board director-cameraman director carrier director circle director coil director/college head Director Commentary by Shawn Levy