直流
The converter units generate harmonics which flow in the AC and DC lines. 換流器單元產生的諧波會流過交流和直流線路。
Numerical experiments were performed to investigate the instability of flow and heat transfer in a heated rotating cavity with cool air axial throughflow. 利用數值模擬的方法對冷氣軸向通流旋轉盤腔的流動過程進行了研究。
