服务有不同的用法和用途；例如，软件服务可以不同于业务服务(如前面的图5所示)。
Services have different USES and purposes; for example, software services can be distinguished from business services (as shown earlier in Figure 5).
描述——终端用户需要描述表单用途和用法的解释和指导。
Description - End users need some sort of explanation and guidance that describes the purpose and usage of the form.
对增量剂的适当的用途将减少游泳比赛中一次来回所需之时间，并且扩大金刚石的生活和表面造成较少金刚石产品用法。
Proper use of the Extenders will reduce lapping time, and extend the life and surface area of the diamond resulting in less diamond product usage.
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