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无磁钻具
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无磁钻具
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nonmagnetic drilling tool
无磁钻具
采用没有磁性或者弱磁性的合金材料而制作的钻铤、钻杆和扶正器等器械。
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low-mass X-ray binary
low mature gas
low meadow
low-melting
low-metallicity
low-metallicity cluster
low-metallicity cluster of galaxies
low-metallicity cluster of stars
low-mid vowel
low-mode
low-mode, L-mode
low molecular weight chondroitin sulfate
low molecular weight compounds content
low molecular weight heparin,LMWH
low mountain landscape
lowness
low nitrogen oxide burner
low noise
low noise amplification technique
low noise amplifier
low-noise amplifier
low noise factory design
low noise machine design
low NOx combustion technology
low NOx emission combustion
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