That beams of light cannot be held stationary, and thus used as a form of memory store, is a big obstacle to doing this.
光束无法被固定在一点上被捕捉，这样只可以被用作为一种存储形式，而这也是很大的一个障碍。
If the system detects an obstacle that is likely to cause a crash, it warns the driver via an alarm, a flashing light, and then a tactile or "haptic" warning which tightens the driver's seatbelt.
如果该系统监测到前面有可能引发碰撞的障碍物，它就会通过警报器、闪烁灯以及可感触的(tactile or haptic)的警告——收紧驾驶员的安全带——向驾驶员发出警告。
You don't consciously decide to stop at a red light or steer around an obstacle in the road.
Pouget 说：“你并不是有意识的在红灯时停车，或者驾车绕过路上的障碍。
If we consider light from the point of view of geometrical optics, we would expect sharp, well-defined shadows to appear behind the edge of an opaque obstacle.
从几何光学的观点出发，我们预期在不透明障碍物边缘的后面将得到明显清晰的阴影。
Light refreshment kiosk, BBQ area, changing room, shower facilities, toilet, raft, playground, car park, obstacle golf course.
小食亭，烧烤区，更衣室，淋浴设备，洗手间，浮台，游乐场，停车场，障碍高尔夫球场。
Light refreshment kiosk, BBQ area, changing room, shower facilities, toilet, raft, playground, car park, obstacle golf course.
小食亭，烧烤区，更衣室，淋浴设备，洗手间，浮台，游乐场，停车场，障碍高尔夫球场。
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