[固定建筑物] 下部钻孔器 hand reamers: 手用铰刀reamers in tandem: 分级扩眼器drills, countersinks, reamers: 钻头machine reamers-technical requirements: 机用铰刀技术条件special tolerance for reamers: 铰刀专用公差下载手机词典可随时随地查词查翻译