选用碱性树脂铬矿砂生产出合格的叶轮。
Alkaline resin chromite sand is used to produce qualified impeller casting.
铬矿砂及其精矿。
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.
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.
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