no core cutting 无芯切割 ; 无芯割切

Core cutting machines 核心切割机械

Automatic Core Cutting Machine 铁心自动剪切设备

core cutting by mechanical loading 机械加压割断岩心

core cutting by hydraulic pressure 液压割断岩心

end-cutting core drill 端面钻中心孔的钻头

cutting line core 切割线芯

percutaneous cutting needle core biopsy 经皮穿刺切割活组织检查

CUTTING QUILL ASSEMBLY CORE 切刀模仁