经生产实践证明，这种复合炉料的效益十分显著。
Production practice shows that the profit of the composite burden is very notable.
经生产实践证明，这种复合炉料的效益十分显著。
Producing practice shows that the efficiency of this composite burden is very well.
试验证明，复合炉料成本低、热稳定性好、强度高、比电阻大，并有利于节能降耗。
The experiment showed the low cost, good thermal stability, high strength and specific resistance of the composite burden and saving energy.
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