<center id="mwm40"><tr id="mwm40"></tr></center>^{<dfn id="mwm40"></dfn>}

<samp id="mwm40"><wbr id="mwm40"></wbr></samp>

ELF

ELF

百科解釋

Extreme Low Frequency -- 極低頻，極長波

通信詞典解釋

<code id="eauwe"></code>

<li id="eauwe"><em id="eauwe"></em></li>

<dd id="eauwe"></dd>

<rt id="eauwe"></rt>

<tbody id="eauwe"></tbody>