Ranges are named collections that are keyed by a numerical range limit and have a String value representing the name of the numerical range.
Ranges是指定的收集，它由数值范围限制键控，并且拥有一个表示数值范围名称的string值。
Ranges are named collections that are keyed by a numerical range limit and have a String value representing the name of the numerical range.
Ranges是指定的收集，它由数值范围限制键控，并且拥有一个表示数值范围名称的string值。
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