到19世纪末，不仅机械，土建，采矿和冶金工程得到了提高，还出现了较新的如化学和电气工程这样的专业。
By the end of the nineteenth century not only were mechanical, civil, and mining and metallurgical engineering established but the newer specialties of chemical and electrical engineering emerged.
冶金喷印标记设备融合了机械、电气、气动、计算机、检测及控制编程技术，是一个典型的机电一体化系统。
The marking equipment for the metallurgy is a typical mechanical-electrical system combined with mechanism, electronics, aerodynamics, computer, inspection, testing and control.
分金：冶金学中，将金和银用化学或电气化学方法进行分离的做法。
Parting: In metallurgy, the separation of gold and silver by chemical or electrochemical means .
结合冶金行业连铸车间除尘的实际情况，简要阐述了袋式脉冲除尘设备的电气系统控制范围和特点，并给出一个较为完备的控制方案。
Combining with the situation in bloom plant, the paper describes the controlling extent and the characteristic of the electric system of bag pulse filter. Then gives a more complete control project.
在开断能力、抗熔焊性、介质恢复强度等电气性能方面均明显优于传统粉末冶金法铜铬触头材料。
The contact has many advantages in breaking capacity, anti-welding behaviour and dielectric recovery strength, compared w…
在开断能力、抗熔焊性、介质恢复强度等电气性能方面均明显优于传统粉末冶金法铜铬触头材料。
The contact has many advantages in breaking capacity, anti-welding behaviour and dielectric recovery strength, compared w…
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