Orebody thickness refers to the vertical or horizontal distance between .
Orebody thickness refers to the vertical or horizontal distance between .
Which of the following is the thickness of the thick orebody?( ) A: 10~40m B: ＞3.5m C: 5~10m D: ＞40m
Which of the following is the thickness of the thick orebody?( ) A: 10~40m B: ＞3.5m C: 5~10m D: ＞40m
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