A static sense of movement, often flat work surface and form the skeleton of the work itself, its direction of motion and structure is basically the skeleton of the spindle in the same direction.

一幅静止的平面作品的运动感往往和构成平面作品本身的骨架有关，它的运动方向基本上和构造骨架的主轴方向一致。

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Power wire in a magnetic field direction of movement of the force and the magnetic sense of direction with the current line (magnetic field) direction related.

通电导线在磁场中受力运动的方向跟电流方向和磁感线(磁场方向)方向有关。

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