铁的

• I would like a bus and subway map , please
  请给我一份巴士和地下铁的路线图。
• China national railway s steam locomotive kf1 class
  中国国铁的蒸汽机车kf1型
• China national railway s steam locomotive in japan
  中国国铁的蒸汽机车中国铁路博览会
• China national railway s steam locomotive et7 class
  中国国铁的蒸汽机车et7型
• Sillicate rocks . determination of iron oxide
  硅酸盐岩石化学分析方法三氧化二铁的测定
• It was " iron " - it was firm , it was mineral . .
  它是铁的，坚硬的，金属的. .
• Studies on the accumulation of fe ion by spirulina platensis
  螺旋藻对铁的富集作用研究
• Investigation on ppfs preparation from pyrite cinder
  硫铁矿烧渣制备聚合磷硫酸铁的研究
• Now they can design integrated iron and steel works
  现在他们能设计钢和铁的合成制品。
• Method for chemical analysis of ferrosilicochromium
  硅铬铁的化学分析方法