The JSR-107 spec has a mandatory feature set and two optional features: annotations and JTA.

JSR - 107规范有一个强制的功能集和两个可选功能：注解和JTA。

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The resulting set will be the intersection of the resulting sets of each spec.

结果集是每种规范的结果集的交集。

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Widgets are loaded according to a set of rules defined in a skin spec file.

控件依照外壳规范文件中定义的一组规则加载。

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One hundred fifty plus office hours is the current tally that you'll see starting to appear on the course's website, thanks to our 60 plus person staff and you'll also see online soon once you have your accounts as per problem set 0 spec.

50多个小时的课时,就是你现在在课程网站上要看到的，在这里我们要感谢60多位同仁的帮助,一旦你开通账号，你就可以在线看到了。

哈佛公开课 - 计算机科学课程节选

Rebuffed by Philadelphia's Academy of Natural Sciences (many of whose members were then enamoured of Alexander Wilson, another American bird-sketcher), he set sail on spec for England in 1826.

ECONOMIST: John James Audubon