Leadtekn.丽台科技(以研发为主的知名科技公司)
leadv.引导;领先;带领;过 ... (的生活);导致n.领头位置;主角;榜样;引言;铅
lead series free cutting steel铅系易切削钢
Lead direct smelting-process直接炼铅
lead-base antifriction alloy铅基抗摩擦合金
lead and its chemical compound铅及铅的化合物
Lead exposure during pragnancy孕期铅暴露
Lead-Copper polymetallic ore铅铜多金属
lead energy dissipation device铅组合耗能器