You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <alltransclusions gatcontinue="Domain_Page|2073" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1366" ns="0" title="Hybrid Electric Vehicle Battery System" />
      <page pageid="1463" ns="0" title="Dolcera Offerings" />
      <page pageid="2037" ns="0" title="Skf" />
      <page pageid="2050" ns="0" title="Ntn" />
      <page pageid="2060" ns="0" title="进口轴承" />
      <page pageid="2061" ns="0" title="SKF轴承" />
      <page pageid="2063" ns="0" title="廉租房" />
      <page pageid="2069" ns="0" title="进销存软件" />
      <page pageid="2070" ns="0" title="別れさせ屋" />
      <page pageid="2072" ns="0" title="マンスリーマンション" />
    </pages>
  </query>
</api>