safety hub的意思|示意

Polystyrene foamed plastic and polyurethane hard foam is the influence of the thermal insulation system of fire prevention safety factors of the functioning of the hub.

聚苯乙烯泡沫塑料和聚氨酯硬质泡沫是影响外保温体系防火安全机能的枢纽因素。

As the hub of power system equipment, power transformer's safety relates to security and stability of power system equipment.

电力变压器作为电力系统的枢纽设备，其安全可靠的运行关系到电力系统的安全与稳定。

This safety sheet compiles safety precautions on handling, using, and disposing hub blade.

本说明书编写操作、使用和处理集线器刀片的安全预防措施。