The alkali-resistance of quartz glass was raisd by 7 to 8 times by coating a layer of mixed Al_2O_3-ZrO_2 colloidal solution on the surface of quartz glass, heating the coated quartz glass at high temperature and thus forming a protection layer on the surface of the glass.
采用Al_2O_3-ZrO_2混合胶体溶液涂敷石英玻璃表面,经高温热处理,在石英玻璃表面形成保护层的方法,使石英玻璃的抗碱性能提高7~8倍。
It not only can improve alkali resistance of coke in the blast furnace,but also reduce the production cost of coke.
本文通过试验研究和实践应用的效果,论证了配煤中适度增加气煤含量,不仅可以提高焦炭在高炉中的抗碱性,而且可以降低焦炭的成本。
Seedlings of Puccinellia tenuiflora were treated by different concentration solutions of patassium nutrients in order to study the effect of patassium nutrients on alkali resistance of seedlings of P.
通过不同水平钾素营养培养星星草幼苗,研究钾素营养对星星草幼苗抗碱性的影响。
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