单词	Petac
释义	Petac 佩塔克¹⁰⁰
随便看	full-mechanized caving mining field full mechanized coal face full-mechanized coal face full mechanized coalmining full mechanized coal mining face full-mechanized coal mining face full-mechanized driving full-mechanized large-height mining full-mechanized mining full-mechanized mining coal full-mechanized mining face Full-mechanized mining face full-mechanized mining working face full mechanized roadway full mechanized roadway heading full mechanized technology full-mechanized top-coal caving full mechanized working face full mechanized working-face full-mechanized working face full mechgnized coal face full media full-meehanized caving mining full meeting full member