... 尖晶石spinel 镁铬尖晶石magnesia chrome spinel,magnesiochromite 硅藻土diatomaceous earth, infusorial earth 蛭石vermiculite 珍珠岩perlite ...
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加入镁铝尖晶石的镁质浇注料在强度方面要好于加入铬矿砂的；
The strength of castable containing MA spinel was better than that of the one contaning chrome ore.
试验表明，加锆改性尖晶石砖的使用情况较直接结合镁铬砖差，而加铬方镁石复合尖晶石砖(LYC砖)的使用效果好于直接结合镁铬砖。
And the test shows that the using condition of modified zirconium spinel brick is more bad than direct-bonded magnesia brick but as for chrome periclase-spinel compound brick (LYC) it is better.
研究表明，用白云石砖、 尖晶石砖、镁锆钙砖代替镁铬砖，符合碱性砖无铬化的发展趋势。
These chrome free bricks include dolomite bricks, magnesia spinel bricks and magnesia calcium zirconate bricks.
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