jackdrill

常见例句

• YNF30 Jackdrill with caunter-cylinder is developed with the aim at resolving the problem existing in the deep-hole drilling by single-cylinder hand diesel jackdrill.
  針對儅前單缸手持式內燃鑿巖機深孔鑿巖存在的問題，研制了YNF30型帶副缸式內燃鑿巖機。
• Keywords Deephole drilling;Powder discharging;Counter-cylinder;Diesel jackdrill;
  深孔鑿巖;排粉;副氣缸;內燃鑿巖機;
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