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shock absorber
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shock absorber
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shock absorber
减振器
吸收钻井中产生的冲击和振动负荷,保护钻头牙齿、轴承和钻具,提高钻头及其他钻具寿命的工具。
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shock absorber
减震器
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Enderby land
endergonic
endergonic reaction
endexine
end-extension
end face
end-face stray field
end-fed vertical antenna
end-fire antenna array
end-fire array
end-fire couplet
end fission chamber
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