“surface down-the-hole drill rig”的概念、定义、翻译、参考文献-科学参考

单词	surface down-the-hole drill rig
释义	surface down-the-hole drill rig Encyclopedia 工学〔露天钻孔设备〕释 surface down-the-hole drill rig露天潜孔钻机以冲击器潜入孔内直接冲击钻头破岩，而回转机构在孔外带动钻杆旋转，向矿岩进行钻进的钻孔机械。
随便看	single electron island single electron model single-electron model single-electron model, one-electron model single-electron model; one-electron model single electron nanoelectronic single electron nanoelectronics single-electron nanoelectronics single electron pump single electron transfer single electron transfer reaction single electron transfer (SET) single electron transistor single electron tunnel effect single electron tunneling single-electron tunneling effect single electron turnstile single electron turnstile device single electron wave function single-electron wave function single-element character single element semiconductor single-element semiconductor single element superconductor single ended mode

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