钻头

roller cone bit

牙轮钻头

roller coating 辊筒涂色 | roller cone bit 牙轮钻头 | roller cutter bit 牙轮钻头

bit cutting angle

钻冠的尖度, 钻头磨角, 钎子头刃角

bit count check || 位计数校验 | bit cutting angle || 钻冠的尖度, 钻头磨角, 钎子头刃角 | bit diameter || 钻头直径

step type drag bit

阶梯形刮刀钻头

step type bit 阶梯形钻头 | step type drag bit 阶梯形刮刀钻头 | step up 升压

core drill bit

岩芯钻头

core cone bit 牙轮取心钻头 | core drill bit 岩芯钻头 | core drill for wood working 木工空心钻

core drill bit

取芯钻具, 取芯钻头

core drill 岩芯钻机;空心钻, 环孔钻头 | core drill bit 取芯钻具, 取芯钻头 | core electrode 有心电焊条

drill bit run

钻头行程

drill assembly 钻柱组合 | drill bit run 钻头行程 | drill bit 钻头

drill drift

钻头冲销

"drill chuck","钻头夹头,钻帽" | "drill drift","钻头冲销" | "drill extractor","起断钻器"

Lost drill bit and driver chuck

故障Fault (三):钻头和卡钎套脱落

4.拆开冲击器,更换活塞或钻头 Disassamble the rock drill replace the f... | 故障Fault (三):钻头和卡钎套脱落 Lost drill bit and driver chuck | 原因cause : 冲击器工作时没有进行右旋 Impact mechanism has ope...

drill gauge

钻头直径量规

drill free 钻头空转 | drill gauge 钻头直径量规 | drill goods 钻井用管材

drill gauge

钻头直径规

drill for quarrying 采石钻机 | drill gauge 钻头直径规 | drill grinding gauge 钻头磨削量规

algebraic multiplicity：代数重度

algebraic logic of pocket calculator 袖珍计算机的代数逻辑 | algebraic multiplicity 代数重度 | algebraic number 代数数

Rafat NAZIR：巴基斯坦电视台 记者

Rafaqat HUSSAIN 巴基斯坦电视台 技术支持 | Rafat NAZIR 巴基斯坦电视台 记者 | Rana Tahir MEHMOOD Daily Jang 编辑