coal ploughing刨煤机: coal plough; coal planer回采: backstoping; recovery; stopp ...刨煤机: coal plough; coal planer 动力刨煤机 activated plough冲唤刨煤机: impact plough; percussive plough动力刨煤机: activated plough下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:刨煤机回采，即可在微信中查询翻译
