The nano-sized magnetic Fe3O4 particles was synthesized by hydro-thermalmethod with the help of ultrasonic wave by reacting FeCl3·6H2O with FeCl2·4H2O and NH3·H2O.
以六水三氯化铁、四水二氯化铁和氨水为原料，在超声波辅助下，水热法制备了磁性四氧化三铁纳米粒子。
2
The die forming process of a hydro turbines blade was simulated by the thermal coupled finite element method.
采用热力耦合三维刚塑性有限元方法，对水轮机叶片模压成型工艺进行了模拟研究。
3
This paper presents the B Coefficent thermal-system equivalent method to have economic dispatching of a hydro-thermal electric system.