A complete MK designation includes both spectral type and luminosity class -for instance, the sun is a G2V.

一个完整的MK系统代号包含光谱类型和光度型两部分——例如，太阳属于G 2 V类恒星。

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To complete the BPA designation, students are required to take courses in customer service, the fundamentals of health insurance, and care management.

要通过BPA认证，学员们要求参加客户服务，基本健康保险知识及陪护管理的课程训练。

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Prefixes are used to identify components of a bearing and are usually then followed by the designation of the complete bearing, or to avoid confusion with other bearing designations.

前缀是用来确定轴承的组成部分，通常其后跟有完整轴承的型号，或用来避免与其它轴承型号混淆。

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To maintain the designation, those tax return preparers must complete 15 hours of continuing education credits each year and renew their PTINs.

FORBES: IRS Begins Competency Test Scheduling