珠光体粗细分级
<TABLE borderColor=#000000 height=174 cellSpacing=0 cellPadding=1 width=401 align=center border=1><TBODY>
<TR>
<TD width=126>
<DIV align=center>级别名称</DIV></TD>
<TD width=265>
<DIV align=center>说明（在500倍下）</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>粗片状珠光体</DIV></TD>
<TD>
<DIV align=center>珠光体中渗碳体、铁素体片间距较大</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>片状珠光体</DIV></TD>
<TD>
<DIV align=center>珠光体中渗碳体、铁素体片间距明显可辨</DIV></TD></TR>
<TR>
<TD>
<DIV align=center>细片状珠光体</DIV></TD>
<TD>
<DIV align=center>珠光体中渗碳体、铁素体片间距难以分辨</DIV></TD></TR></TBODY></TABLE>
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