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Terms for subject Metallurgy containing 定心孔 | all forms | in specified order only
ChineseEnglish
定心孔centring hole
孔划线时用定心孔塞centre bridge
自动定心穿孔器self-centring punch
自动定心穿孔器bell centre punch
自定心穿孔器self-centring punch
钻孔定心drill centring

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