The content of 12 Inorganic ions including Na, K, Ca, Mg, Cl, P, Fe, Cu, Zn, Mn, As, Se were quantitatively analysed in extract fluid of Xueyutan, fowl feather and Tibetan Snow Cock′s feather.
对血余炭、鸡毛、藏雪鸡毛的水提取液中钠、钾、钙、镁、氯、磷、铁、铜、锌、锰、砷、硒等12种无机离子含量进行了定量分析。
In producing Mn Si alloys with hot furnace, feeding ratio of s? Mn is regulated, and slag amount and pH value are controled.
介绍了电炉生产锰硅合金时，合金中硫含量随所用原料硫含量变化的情况。
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