But realistically you can't rely on one technique.
但实际上，你不可能只依赖一种解决方法。
Previous efforts, like the one pictured before – while still scarily advanced – are nonetheless always slightly inaccurate, because they rely on a camera/projector technique.
以往的努力，正如以前这张照片上所显示的，尽管先进得令人瞠目结舌，但还不够有说服力，因为它依赖于摄影/投影技术。
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