用户主体（如果运行时系统已经验证了这个用户）帮助服务开发者验证用户来得到特定的运行时操作。
The user principal (if the run-time system has already authenticated this user) helps the service developer validate the user for specific run-time actions.
第二部分介绍了国外循环经济法主体责任配置的经验借鉴。
Part two introduces the experience of the Circular Economy Law entities responsibility assigning from foreign countries.
意象的创构以主体的审美经验为基础，通过主体独特的眼光和比兴的思维方式等，借助于想像力而达成的。
With the unique eyesight and the thinking method of the Bi and Xing, the imagery construction is completed by the imagination on the basis of the subject 's aesthetic experience.
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