注意标点，特别是逗号和句号的正确使用方法。
Pay attention to punctuation, especially to the correct use of commas and periods.
目的：监护仪的正确使用方法和值得注意的问题。
Object:correct operation of wardship apparatus and some noticeable matter.
目的：监护仪的正确使用方法和值得注意的问题。
Object:correct operation of wardship apparatus and some noticeable matter.
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