求翻译：摘要：分析轧钢厂优特钢轧机提升液压子系统存在的问题，提出有效的技术改造措施，确保轧机升降正常稳定。是什么意思？

Abstract: rolling mill steel rolling mill to enhance the excellent hydraulic subsystem problems, propose effective technological measures to ensure normal and stable rolling movements.

Summary: analytical rolling mill optimization steel rolling mill upgrading hydraulic subsystems existing problems, and presented an effective technical transformation mill landing measures to ensure normal and stable.

Abstract: Analyzes question which the steel mill superior special rail rolling mill promotion hydraulic pressure subsystem exists, proposed the effective technological transformations measure, guarantees the rolling mill to rise and fall the normal stability.

Summary: analysis of rolling mill upgrade problems in hydraulic subsystem of special steel rolling mill, to come up with effective technical transformation measures to ensure that mill lift normal and stable.

Summary: analysis of rolling mill upgrade problems in hydraulic subsystem of special steel rolling mill, to come up with effective technical transformation measures to ensure that mill lift normal and stable.