Ina long tracking shot at the start of the film, a feral cat prowls thiswasteland until it is felled by a slow-motion arrow.
在这部电影一开始的长时间跟踪镜头里，有一只野猫正在废墟上刨食，突然被一支慢动作展示的箭头射翻在地。
The error caused by rotary tracking mirror device and cat eye reflector in the laser tracking measure system are discussed, and its effect to the measuring result is analyzed.
论述了在激光跟踪测量系统中由跟踪转镜机构和猫眼逆反射器产生的光学误差，并分析了它们对测量结果产生的影响。
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