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石墨青铜
tech. graphite bronze; graphitized bronze
石墨青铜
met. graphitized bronze
石墨青铜铜锌石墨合金或纯铜石墨合金;50Cu, 50石墨;或 79Cu, 10Zn, 11 石墨
met. graphite bronze
石墨 青铜
: 19 phrases in 6 subjects
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