trinal

By means of the methods of DTA-TGA, infrared spectroscope and optical microscope, we made a series of investigations on heat effected surface layer of the friction material which was made from basic trinal formula and had undergone a friction test on the constant speed type friction tester.

本文通过差热-热失重分析、红外光谱分析和光学显微观察等手段，对经过定速式试验机摩擦试验的石棉-树脂-填料三元基础配方材料的热影响表面层进行了研究。

Two Temperature Traverse Sections of Ag-Cu-Si Trinal System

Ag-Cu-Si合金系的两个变温截面

The recovery percentage was no more than 60% as the processes of trinal evaporation and vacuum distillation were applied to caprolactam reclamation from extract water in caprolactam polymerization plant.

己内酰胺聚合装置回收萃取水中的己内酰胺采用三效蒸发、真空蒸馏的方法，回收率只有60%。