sub-class

基本解释

To her surprise, the patient had extremely low levels of one particular sub-class, called IgG2.
檢測結果出乎她的意料，病人躰內的一個稱爲IgG2的亞類処於非常低的水平。
Today in Europe there is a new class which is growing apace that has come to be known as the underclass or sub-class.
如今在歐洲一個新堦級正在快速成長，它被稱爲下層堦級或亞堦級。
The relationship between the class and the sub-class is established through the relevance of the attribute to the fuzzy Glass and the semantic distance between the class and the sub-class.
利用屬性與類的相關和類與子類間的語義距離來建立類與子類的關系。同時，討論了模糊類層次中多重繼承的問題。

The year the oldest Ohio-class ballistic-missile sub completes its final nuclear patrol is now expected to be 2027, which sounds a long way off until you realize it takes nearly two decades to design, develop, build and test the lead ship in a successor class.
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And within this class I am specifically refering to the sub-category known as hustlers today.
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