常見例句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(nèi)燃鑿巖機深孔鑿巖存在的問題，研制了YNF30型帶副缸式內(nèi)燃鑿巖機。Keywords Deephole drilling;Powder discharging;Counter-cylinder;Diesel jackdrill; 深孔鑿巖;排粉;副氣缸;內(nèi)燃鑿巖機; 返回 jackdrill