有些相机会比别人有更多的预置和测试等玩耍时发生了什么改变预置。
Some cameras will have more presets than others so play around and test what happens when you change the presets.
另外，这部分还包括了针对磁铁的特殊测试和滥用情况的要求，以避免玩耍过程中磁体从部件上脱落。
In addition, it includes special use and abuse requirements to avoid magnets from detaching from components during play.
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