platinummetals铂系金属
platinumplating镀铂
platinumplatinumrhodiumthermocouple铂铂铑合金热电偶
platinumsponge海绵铂
platinumwire铂丝
plugchanger换顶头装置
plugdrawing短芯棒拉拔
pluglines芯棒划痕
plugmill自动轧管机
plugnose尖头
plugrammingmachine捣固机
plugscratch芯棒划痕
plugwelding塞焊
plugging堵塞 加盖
pluglessrolling无顶头轧管
plumbago粉状石墨
plumbagocrucible石墨坩埚
plumbeouscompound二价铅化合物
plumber'ssolder管工用焊料
plumbiccompound四价铅化合物
plussieve筛上物
plutonium钚
plysteel复合钢
plymetal涂金属层板
pneumaticconcentration风选
pneumaticconveying气龄送
pneumatichammer空气锤
pneumaticrammer风动捣锤
pneumaticseparation风选
pneumaticsteelmakingprocess空气转炉炼钢法
pointcorrosion点蚀
pointdefect点缺陷
pointgraphite点状石墨
pointgroup点群
pointimperfection点缺陷 | 