The technological performance, parameters and structure of air-cooling transformer are introduced with the key technology for improving the reliability and reducing dissipation.
介绍了风冷变压器技术性能，参数，结构及为提高变压器可靠性和降低损耗而采取的关键技术。
Structure of beer compound roll and technological parameters of casting by horizontal centrifugal have been introduced with discussion of defects and preventing methods of roll.
介绍了制造啤酒所用复合辊套的结构，离心铸造复合辊套的工艺参数，讨论了辊套的缺陷及防止方法。
The type, application, technological parameters and die structure of the cross-wedge-rolling technology were introduced.
介绍了楔横轧工艺的类型、应用、工艺参数及模具结构。
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