卫星图-区域掩模3D效果：
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<html>
<head>
<meta name="viewport" content="width=device-width initial-scale=1.0 maximum-scale=1.0 user-scalable=0">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>掩模</title>
<style>
html,body,#container{
margin:0;
height:100%;
background-color:rgb(216, 238,250) !important
}
</style>
</head>
<body onl oad="">
<div id="container"></div>
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