The complex Ca-Fe-Zn supplements of vinegar were primarily studied in this paper.

本文对钙铁锌复合强化陈醋进行了初步研究。

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The results showed that increasing the feeding speed, the amount of Ca-Fe cored wire and the diameter of the tundish nozzle can prevent blockage.

结果表明，提高喂线速度、加大喂线量和增加水口内径可避免水口的堵塞。

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Speciation of Zn, Mn, Fe, Ca, Mg in Ligusticum wallichii Franch was analyzed by atomic absorptionspectrometry.

利用原子吸收分光光度法对中药川芎中锌、锰、铁、钙、镁五种元素的形态进行了研究。

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