Lorong-panjang ( longwall, )

In Kamus Geologi Tambang 116 views

Lorong-panjang ( longwall, ) merupakan Metode penambangan batubara bawah tanah yang panjang permuka kerjanya antara 100 – 200 m; sin. Dinding-panjang

Cari Istilah Geologi Tambang


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