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    <mxCell id="n7" value="结论：无需内标即可区分菌株，未来引入同位素稀释" style="rounded=1;whiteSpace=wrap;html=1;fillColor=#F8CECC;strokeColor=#B85450;fontSize=12;fontStyle=1;verticalAlign=middle;align=center;" vertex="1" parent="1">
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