• 黑色金属矿产探明储量钛等,其中保有储量为459亿主要分布东北华北西南地区,辽宁的鞍山-本溪一带、河北的冀东一带、四川的攀枝花一带,都大型的矿区。

    Proven reserves of ferrous metals include iron, manganese, vanadium and titanium. China's 45.9 billion tons of iron ore are mainly distributed in northeast, north and southwest China.

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  • 灰色金属通常作为不锈钢合金元素。

    A grey metal that is normally used as an alloying agent for iron and stainless steel.

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  • 采用0.8%变质后进行电磁离心铸造浇铸,研究高组织力学性能变化。

    The high-Cr cast iron which is modified by 0.8% V-Fe is obtained by centrifugal casting and high cr iron microstructure and performance are discussed.

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  • 为此,以双氧水、铜试剂掩蔽剂,对液进行了除杂净化试验

    For this, hydrogen peroxide and cupferron were used as screening agent and agent for removing impurities in the test of purifying this vanadium-containing acid leaching solution.

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  • 探讨牙科陶瓷配色方法机理通过锆黄、锆镨黄、锆红、铬铝锌红对牙科陶瓷进行配色

    The mechanism and method of computer color match for ceramics is discussed by taking the dental porcelain as an example.

    youdao

  • 探讨牙科陶瓷配色方法机理通过锆黄、锆镨黄、锆红、铬铝锌红对牙科陶瓷进行配色

    The mechanism and method of computer color match for ceramics is discussed by taking the dental porcelain as an example.

    youdao

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