表示产品与安全有关的特殊特性符号（一般特性）；
" Means that the product has something to do with safety the special characteristic sign( general characteristic);"
转换包括诸如缩排更改、特殊引导符号之类的特性。
Transitions consist of features like changes in indentation, special leading symbols, and so on.
转换包括诸如缩排更改、特殊引导符号之类的特性。
Transitions consist of features like changes in indentation, special leading symbols, and so on.
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