这就象是拍一张静态的地平线的照片，静止不动，然后尝试画一张如何到达那里的完美的地图。
This is like taking a static picture of the horizon, staying still, and trying to draw a perfect map of how to get there.
不动的线到飞动的线。
它们非常适合大型固定机械，清除生产线、分模和组装以及不动产，机械，工作引发输送线，产品装配，以及其他工厂的维护和操作。
They are ideal for servicing large, immovable machinery, working off a conveyor line, product assembly, and other plant maintenance and operations.
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