These are publicservice ads from the social nature of the decision to make publicservice ads can be a very good business and the public one of the channels of communication.
这些都是由公益广告的社会性所决定的,使公益广告能很好的成为企业与社会公众沟通的渠道之一。
2
The purpose of publicservice advertisements (PSAs) is to promote the useful concept for the public interest. It is an activity of advertising communication.
公益广告是为公众利益服务的、以推广有利于社会的公益观念为目的的广告传播活动。
3
Concerning the insecure factors of Short Message Service (SMS) in public mobile network, a SMS system for secure communication was put forward.