聚乙烯材料基础知识、管材管件规格、管道的施工规范、技术要点、管理经验及设计参数。
Basic knowledge of polyethylene material, pipe fittings specifications, pipeline construction specifications, technical points, management experience and design parameters.
同时设计确定了电液比例系统主要元件的规格型号及参数。
Specification, model number and parameter of main parts in electro-hydraulic proportional system are designed and determined at the meantime.
分析了整体冷卷鼓体参数、硫化压力、制品精度、钢板规格及卷制设备能力间的关系。
Analyzed the relationship of parameters of complete cold winding drum, curing pressure, precision of finished product, steel plate size and the winding-up equipment.
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