自动办公自动化系统，可以为企业提高工作效率。-The automatic office automation system, for enterprises to improve efficiency.

Localization issue is a crucial part of Wireless Sensor Networks (WSNs) including Underwater WSNs (UWSNs). Unlike in Terrestrial WSNs where the localization techniques are well established, localization for UWSNs is still at the infancy stage. Most o