短語(yǔ)詞組短語(yǔ)drill l jumbo 大型多鉆頭鉆機(jī)hydro -drill jumbo 液壓鉆車feed drill jumbo 長(zhǎng)進(jìn)給鉆車crawler mounted drill jumbo 履帶式鑿巖臺(tái)車rotary y drill jumbo 回轉(zhuǎn)式鉆車rotary drill jumbo 回轉(zhuǎn)式鉆車;旋轉(zhuǎn)式鉆車 返回 drill jumbo