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单词
laser drill
释义
laser drill
laser drill
[
′lā·zər ‚dril
]
(optics)
A drill in which concentrated light from a ruby laser generates intense heat for drilling holes as small as 0.0001 inch (2.5 micrometers) in diameter in tungsten, gemstones, and other hard materials.
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backdowns
back draft
backdraft
back-draft damper
backdraft damper
backdrafting
backdrafts
backdraught
backdraughting
backdraughts
backdrop
backdropped
backdropping
backdrops
back east
back eccentric
back echo
back-echo reflection
-backed
backed
backed and filled
backed away
backed cloth
backed down
backed for bail
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更新时间:2025/2/7 15:43:31