And then make an analysis to their technology and economy based on the railway estimate norm and metallurgy engineering estimate norm.

桩基法介绍了灰土桩、砂桩、碎石桩的适用范围，采用冶金建设工程预算定额的有关定额进行了技术经济分析。

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Mechatronics technology is widely used in steel, power, and petrochemical, and mining, metallurgy, and automobile, shipbuilding, aviation and engineering industries.

机电一体化技术目前越来越广泛被采用于钢铁、电力、石油化工、采矿冶金、汽车、造船、航空工程等行业中。

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With such advantages as simple production engineering, high purity production, vacuum-thermal reduction technology takes a important position in non-ferrous metallurgy field.

真空热还原制备技术具有生产工艺较简单、产品纯度高等优点，在有色金属冶金领域占有非常重要的位置。

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