swirl是什么意思

双语用例

• Individual frequencies that are mixed together in order to create sonic masses follow reciprocal types of motion, including undulations, surges, swirls, drifts and dips.

• Figure 5 illustrates this effect on the growth rates of various unstable modes when the ambient air is swirling with a solid-body-rotation profile.

• Occasionally a cloud would settle over the mountain top for a day or two sending cool mists swirling through the steep alleyways.

• There is a swirling jet fan near the plane.

• Then is just the streamfunction for the transverse velocity components of an axisymmetric, swirling flow.

• There was always a tension swirling round the concept, both in the interwar period and after.

• A good deal of swirling occurred among the middling group, but there was little fundamental change or replacement by others.

• The wall of the aortic arch was thin, and blood could be seen swirling in it proximal to the site of narrowing.