The matching equivalent classes of graphs with the maximum matching root less than 2 and their complement graphs are characterized.

本文刻画了匹配最大根小于2的图及其补图的匹配等价图类。

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InfoQ: a very neat and often used feature of Scala is pattern matching, which has no equivalent in Ruby.

InfoQ： Scala的一个非常灵巧，又被经常使用的一个特性就是模式匹配，而这在Ruby中却没有对应之物。

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First Solar produces thin-film modules capable of creating energy at around $2 per watt, equivalent to 15 cents per kilowatt hour--matching electricity prices in many global markets.

最初的太阳能薄膜模块可产能量为每瓦2美元左右，相当于15美分/千瓦时 - 相当于全球许多市场的电力价格。

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For example, receiving a 50% matching contribution is the equivalent to earning a 50% rate of return instantly.

FORBES: When Not to Invest in Your 401(k)