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凹面滚子轴承

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āo miàn gǔn zǐ zhóu chéng
concave roller bearing

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ablaut, ablaze, ABLB, able, able seaman, able to, ablebodied, able-bodied, ablegate, ableism,

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凹孔, 凹口, 凹落, 凹面, 凹面滚子, 凹面滚子轴承, 凹面镜, 凹模, 凹刨, 凹入的地方,