corundum造句
31 Under the condition of applying scale test of UNITANK process, rubber film aerator and campanulate corundum aerator have been investigated.
32 The main materials are high quality bauxite, fused corundum and high - purity spinel etc.
33 Usage: Mainly used in the production of fused salt electrorefining aluminium , corundum , enamel , refractories and other alumina chemical products, meanwhile it can also used in paints area.
34 The effect of spinning pack of corundum filter plate on spinning for Nylon 66 was studied.
35 The abrasive material used may be a synthetic grit a ground slag ground corundum iron or steel shot. It must not contain sand or any form of silica.
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