chapter06: Translate libelf instruction

chapter06/libelf.xml

@@ -23,8 +23,7 @@
   <sect2 role="package">
     <title/>
 
-    <para>Libelf is a library for handling ELF (Executable and Linkable Format)
-    files.</para>
+    <para>Libelf 是一个处理 ELF （可执行和可链接格式）文件的库。</para>
 
     <segmentedlist>
       <segtitle>&buildtime;</segtitle>
@@ -41,8 +40,8 @@
   <sect2 role="installation">
     <title>安装Libelf</title>
 
-      <para>Libelf is part of elfutils-&elfutils-version; package. Use
-      the elfutils-&elfutils-version;.tar.xz as the source tarball.</para>
+      <para>Libelf 是 elfutils-&elfutils-version; 软件包的一部分，
+      使用 elfutils-&elfutils-version;.tar.xz 作为源代码包。</para>
 
     <para>准备安装 Libelf：</para>
 
@@ -52,9 +51,9 @@
 
 <screen><userinput remap="make">make</userinput></screen>
 
-    <para>To test the results, issue <command>make check</command>.</para>
+    <para>执行 <command>make check</command> 以测试编译结果。</para>
 
-    <para>Install only Libelf:</para>
+    <para>只安装 Libelf：</para>
 
 <screen><userinput remap="install">make -C libelf install
 install -vm644 config/libelf.pc /usr/lib/pkgconfig</userinput></screen>
@@ -65,7 +64,7 @@ install -vm644 config/libelf.pc /usr/lib/pkgconfig</userinput></screen>
     <title>Libelf 的内容</title>
 
     <segmentedlist>
-      <segtitle>Installed Library</segtitle>
+      <segtitle>安装的库</segtitle>
 
       <seglistitem>
         <seg>