煤矿开采方法及技术对煤矿的安全生产、生产设备能力的发挥、生产成本、经济效益等具有十分重要的作用。
The mining and technology play an all-important role in the safety production, exertion of the equipments ability, production cost, economic benefit, and so on.
为了降低生产成本、提高经济效益及探索铬粉矿的利用途径，进行了SRC铬球团矿冶炼高碳铬铁的试验。
The experiment of smelting HCFeCr was performed with SRC chromic ore pellets in order to reduce cost of production, increase economic benefit and look for ways of using chromic fine ore.
如何根据生产需要对材料的订货批量、订货批次及订货周期进行决策，将影响到企业的产品成本和经济效益。
So how to make decision of the order batch, order quantity, order period of the materials according to the production need direct influences on the economic benefit.
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