shaft-sinking drill

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shaft-sinking drill [′shaft ‚siŋk·iŋ ‚dril]

(mining engineering)

A large-diameter drill with multiple rotary cones or cutting bits, used for shaft sinking.

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shaft siding
shaft signaling
shaft sinking
shaft spillway
shaft station
shaft strut
shaft-position encoder
shaft-sinking drill
Shafter, William Rufus
Shaftesbury
Shaftesbury, Anthony Ashley Cooper, 1st earl
Shaftesbury, Anthony Ashley Cooper, 1st earl of
Shaftesbury, Anthony Ashley Cooper, 3d earl of
Shaftesbury, Anthony Ashley Cooper, 3rd earl
Shaftesbury, Anthony Ashley Cooper, 7th earl

Encyclopedia

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