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Ãʱâ Àη ±¼Âø
Initial Manned Excavation
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Àη±¼Âø ÀûÀç
Initial Excavation
and Loading
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À¯ÀÎ ±â°è±¼Âø
Mechanical Excavat
ion with Man
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¹«ÀÎ ±â°è±¼ÂøRemoteControlled
Excavation
Without Man
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õ°øÀÛ¾÷ Drilling
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õ°ø ÈÄ Æø¾à »ðÀÔ Inserting Explosive after
Drilling
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ÇÔ³» Àå¾à ¿Ï·á Inserted Explosive
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¹ö·° ¼ÒÇÒ ¹ßÆÄ Blasting for Muck-crushing
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¹ßÆÄÈÄ ÀÜÅä ó¸® Removal of Remaining Soil
after Blasting
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³¯³¡ºÎ ÀÜÅä ó¸® Removal of Remaining Soil
on the Cutting Edge
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