Chinese translation for "pilotboring"

先行试钻

Similar Words：

"pilotbell" Chinese translation, "pilotbit" Chinese translation, "pilotblocksystem" Chinese translation, "pilotboat" Chinese translation, "pilotboiler" Chinese translation, "pilotbrace" Chinese translation, "pilotbracket" Chinese translation, "pilotbriefing" Chinese translation, "pilotbrush" Chinese translation, "pilotburner" Chinese translation