在地磁涡流中心处有成束的地磁线穿过表面。
There are bundles of meridians breaking through the surface at the center of this vortex.
参与者坐在涡流的中心，不会被泡沫颗粒碰到，但颗粒在塑料墙上形成的壮丽图案会让参与者仿佛被催眠般失去对时间的意识。
Seated at the eye of the storm, the visitor is untouched by the particles, but mesmerized by the spectacular patterns they form on the plastic walls.
确定振动是由入口调节门后中心涡流引起的气流周期性高脉动造成的。
Vibration is caused by periodic high pulsation of airflow resulted from the center eddy behind the inlet damper.
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