roof angle屋面: roofing; roof covering; roof角: role; part; character面角: external cone angle; face angle; interfacial angle; plane angle屋面: [建筑] roofing; roof covering; roof二面角，双面角: dihedral angle下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:屋面角，即可在微信中查询翻译
