The reasons of forming a shock-cell structure and changing the flow field pressure were analyzed with jetdynamics.
根据射流动力学理论，分析了产生这种波系结构和流场压力变化的原因。
2
The heavier cloud cover to the north and west of this circular pattern was likely a response to a low-pressure system and to jet stream dynamics.
圆形的云型中，北部和西部云量更多，这可能是由于低压系统和急流的作用。
3
A Pakistani UAV called the Tornado, made in Karachi by a company called Integrated Dynamics, emits radar signals that mimic a fighter jet to fool enemies.