... 品牌： NEC 型号： SF-E 额定电压： 250VV ...
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Enersyn SF-E 嘉实多抗燃液压
BP Enersyn SF-E BP安能欣抗燃液压油
CASIO E-SF 卡西欧E
The application of two corrosion inhibitors i. e. 7019 and SF-121B in the overheads of three towers of atmospheric-vacuum distillation unit was summarized and the economic performances were analyzed.
总结了7019和SF - 121 B两种缓蚀剂在常减压三塔顶的应用情况，并进行了经济技术指标分析。
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