Why Are So Many Lines Still Reserved for Emergency Telephone Calls in Emergency Situations?

Why Are So Many Lines Still Reserved for Emergency Telephone Calls in Emergency Situations?
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为什么在紧急情况下仍然保留这么多线路用于紧急电话呼叫?

DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Katsunori Yamaoka
Katsunori Yamaoka
中科院分区:
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文献类型:
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作者:
Kazuki;Tanabe;Sumiko Miyata;Ken-ichi Baba;Katsunori Yamaoka

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