Based on the joint theoretical research of the Chinese Academy of Sciences and the United States. "Gerdien Tube" air collector, unique active suction tube capacitor, stable ...Learn more
The effective use of high-tech drones to solve forestry resource surveys and forest fire prevention has become the top priority of forestry work. ...Learn more
The sum of wetland ecosystems, including water, soil, biology, climate, etc. As a resource, wetland plays an extremely important role in protecting the environment ...Learn more
A nature reserve refers to the land where protected objects, such as representative natural ecosystems, natural concentrated distribution of rare and endangered wild animal and plant species, and natural monuments of special significance, are located ...Learn more
Green prevention and control As a whole, green prevention and control refers to starting from the overall farmland ecosystem, based on agricultural control, actively protecting and utilizing natural predators, deteriorating the living conditions of pests and diseases, improving ...Learn more
Install and open the NAVA GPS OFFICE software on your computer, and connect to a GPS device to import or export data
At present, the most commonly used satellite phones are the Eurostar, Iridium and Maritime Satellite systems. Their billing methods are relatively complicated. Simply put, they have both domestic and international cards ...
Handheld GPS FAQ ...
What Beidouhaichao and satellite phones have in common is that they are communication tools in the signal dead zone ...