当在一个终端加上一个电场时，DNA分子将穿过表面并和障碍物碰撞，以致阻碍了它们的行动。
When an electric field is applied at one end, DNA molecules will move across the surface and collide with the obstacles, impeding their motion.
但是为了帮助我们的公司竞争，我们还必须打破那些阻碍它们成功的障碍物。
But to help our companies compete, we also have to knock down barriers that stand in the way of their success.
雷达可对雾中的障碍物定位，而其他的科技手段可透过阻碍你视线的高大车辆看到前方。
Radar can spot obstacles in fog, while other technology "sees through" high-sided vehicles blocking your view.
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