【二鉸拱】
<P align=center><STRONG><FONT size=5>【<FONT color=red>二鉸拱</FONT>】</FONT></STRONG></P> <P><STRONG>two-hingedarch</STRONG></P><P><STRONG></STRONG> </P>
<P><STRONG>【辭書名稱】力學名詞辭典</STRONG></P>
<P><STRONG></STRONG> </P>
<P><STRONG>二鉸拱是一種拱結構，（參見three-hingedarch。）</STRONG></P>
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<P><STRONG></STRONG> </P>轉自:http://edic.nict.gov.tw/cgi-bin/tudic/gsweb.cgi?o=ddictionary
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