This article use Mn to replace Ni to make low-cost LCHA, and the effect of Mn on structure and properties of LCHA was discussed following.
本文就对以锰代镍制取低成本低碳高合金钢，以及锰元素对其组织与性能的影响作了一些探讨。
This paper discussed the flotation effect, properties and flotation feature of J - 622 collector - frothiers introduced the use and application of this reagent in industries.
探讨了J - 622捕收起泡剂的浮选效果、性能及其浮选特点，介绍了该药剂在工业上的应用情况。
The properties of imazethapyr, including effect of controlling weeds, degradation, effect of residues of imazethapyr in soil to succeeding crops and use.
本文主要报道了咪草烟的特性、除草效果、降解、对后茬作物的影响以及使用方法。
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