tlf

This paper introduces the process condition and controlling requirement of automatic control system of LF fining furnace of 50t electric furnace in Laiwu Iron and Steel General Works and it also do a expounding to PLC system arrangement, design plan, controlling function and controlling method.

简单介绍了莱钢特殊钢厂50tLF钢包精炼炉自控系统的工艺情况和控制要求，对其PLC系统配置、设计方案、控制功能及控制方法作了说明。

MTL-Relcom FF physical layer component application in BP/ SECCO and Shell/ CNOOC Nanhai is introduced, and how to select the power conditioner and wiring components in hazardous area is described.

介绍MTLFF现场总线物理层设备在上海赛科和南海壳牌项目中的应用，阐述了在危险区应如何进行总线电源调节器和接线器的选择。

On T 2 WI , TLF exhibited hyperintensity in 78 patients and intermediate intensity in 7 patients.

在T2WI上, 78例呈低信号强度,7例呈中等信号,36个病灶压迫脊髓可见高信号区.