drilling unit meaning in English

凿机机组
钻床的动力组合单位
钻机机组
钻井单元；钻机组
钻井平台

Machine tools ; modular units ; single spindle drilling units ; constructional sizes
机床.组合装置.单轴钻床.结构尺寸
Electrical installations in ships - part 505 : special features - mobile offshore drilling units
船用电气装置.第505部分:专用设备.可移动的近海钻井设备
Core guide groove plate and keys guide plate , they can be a very good guide insert the key - lock curve , they also can effectively prevent - line tools to open locks road allocated insert technology pellets , billiard and supporting anti - drilling unit has played backing billiard do not fall into the lock , they can effectively prevent the portable rechargeable electric drill - the penetrating , also can play a bit role jammed , they also can improve the defense lock drilling capacity and the ability to open devastating
锁芯导槽片和钥匙导向片，能很好地引导钥匙插入曲线式锁道，并能有效地防止直列式开启工具插入锁道拨技弹珠，而弹子支撑防钻片起到支撑下弹子不落入锁道，并能有效地防止便携充电式电钻的钻入，起到卡住钻头的作用，提高锁具的防钻能力和破坏性开启的能力。