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bit burnt
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bit burnt
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孔内事故
释
bit burnt
烧钻
在钻进过程中,由于循环系统发生故障,在高速回转时产生高热,钻头与岩心、岩粉烧结在一起的事故。属孔内事故。
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needle retention method
needle roller embroidery
needle scanning
needle-shaped variation
needle-shaped wollastonite
needle size
needlet
needle variation
needle withdrawal method
needling interlining
needling sensation
needling Si Feng point
need of human
needs assessment
need-to-know
Neel
Neel point
Neel temperature
Neel wall
neem
Neeme Järvi
neeuclear explosion earthquake
nef
NEFA
nef cone
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