Three types of traction power are further compared both economically and technically.
并进一步对三种牵引动力作了技术经济比较。
The model will make the traction power system to be more safe, reliable and economical.
该模型将使牵引供电系统的建立更加安全、可靠、经济。
The change of wire rope traction belt-conveyor after transform of power brake system.
介绍了钢丝绳牵引胶带输送机制动系统改造方案前、后的对比。
The change of wire rope traction belt-conveyor after transform of power brake system.
介绍了钢丝绳牵引胶带输送机制动系统改造方案前、后的对比。
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