Hence, for finding out special a particular place, person, or object in some unfamiliar or complicated indoor environment, people also more and more pay attention to the indoor navigation system.
为了在一些陌生或复杂的室内环境中找到特别的地方、特定的人或目标，引起了人们对室内导航系统的关注。
Hence, for finding out special a particular place, person, or object in some unfamiliar or complicated indoor environment, people also more and more pay attention to the indoor navigation system.
为了在一些陌生或复杂的室内环境中找到特别的地方、特定的人或目标，引起了人们对室内导航系统的关注。
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