噢，秘密行动模式！
用红色标出的区域被称为旋转，这些都是海洋洋流，因为其行动模式，各种东西都被卷入并困在那里。
The areas outlined in red are called gyres, these are currents out in the ocean, and because of way they work, things that float into them kind of get trapped there.
一旦你选择线程几何形状，长度的领域，选择开始按钮，圆单选按钮从选项的选择和行动模式成为积极的。
Once you select the thread geometry, the Length field, and the select Start button, the Circle radio button from the Selection Options and the action mode become active.
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