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<body class='hmmessage'><div dir='ltr'><div id="inlineImage0" style="display: inline-block"><script type="jsv#799_"></script>What is the best <span contenteditable="true">way to overlay two color-filled contour maps (like below) in NCl? <br><br></span> <div initwidth="604" initheight="453" class="inlineImage" style="display: inline-block" unselectable="on" contenteditable="false"><img src="cid:inlineImage0" height="453" width="604"></div> <span contenteditable="true"><br><br>Thanks<br>Xiaoming <br></span><script type="jsv/799_"></script></div>                                            </div></body>
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