Using the portable, flexible and function-strong characters of hand-GPS, the accurate surface and geographic information of work zones can be easily acquired.
利用手持GPS轻便、灵活、功能强的特点，可以方便地获取工区地表及地理条件的准确信息。
Using the portable, flexible and function-strong characters of hand-GPS, the accurate surface and geographic information of work zones can be easily acquired.
利用手持GPS轻便、灵活、功能强的特点，可以方便地获取工区地表及地理条件的准确信息。
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