Field trips with instruction in map, compass, and Global Positioning Systems.

在地图, 指南针, 和全球放系统与指令回答旅行.

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JIANGJIA JPA series is a miniature antenna element for Global Positioning Systems ( GPS ).

JPA系列是用于全球定位系统 ( GPS ) 的小型天线元件.

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The pirates have fast boats, modern weapons and equipment like satellite phones and global positioning systems.

海盗拥有快速船只, 现代武器和像卫星电话和GPS先进装备.

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