porous iron-lead-graphite bearing的意思|示意
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多孔铁铅石墨轴承
porous iron-lead-graphite bearing的网络常见释义
多孔铁铅石墨轴承 ... porous iron-copper parts ==> 多孔铁铜零件 porous iron-lead-graphite bearing ==> 多孔铁铅石墨轴承 porous layer ==> (岩石的)多孔层 ...