从训练曲线和检验曲线上看，软测量仪表达到一定的精度，满足工程要求。
From the training and testing curve, software instruments obtain certain accuracy, satisfying the requirement of project.
软测量技术也称为软仪表技术。
Soft measurement technology is also named soft instrument technology.
主要探讨了两个方面的问题：采用神经网络建立各个侧线粘度和闪点的软测量仪表以及采用NLJ方法实现常减压塔的操作优化。
Mainly it discusses two problems: software instruments of viscosity and flash point using neural networks and operation optimization on the atmospheric and vacuum towers using NLJ method.
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