Some research dates indicate that the time people spend indoors is up to 80% as they spend outdoors. So that indoor environment is closely linked with people 's life.

有资料调查表明，人们百分之八十以上的时间是呆在室内，因此可以说室内环境与人们的生活息息相关。

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Digitized cadastral map is drawn with drawing instruments after data′s collection with electronic theometer and electronic automatic recording in the field and editing graphic indoors.

数字化地籍图是用电子速测仪和电子手簿自动记录器在野外采集数据，在内业进行图形编辑，然后用绘图仪绘制成的地籍图。

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They play indoors. Everything's indoors. And so we're actually starting to see low levels of vitamin D in areas where the sun is plentiful."

VOA: special.2011.01.05

The company claims to be able to pinpoint the user's location indoors within about 8 feet.

CNN: The growing push to track your location indoors

The company claims to be able to pinpiont the user's location indoors within about 8 feet.

CNN: The growing push to track your location indoors

New technology from innovative product development firm Cambridge Consultants can accurately detect someone's location indoors when GPS drops out.

ENGADGET: Cambridge Consultants develops indoor tech to pick up where GPS drops off