这些波浪，内波，可能会有几万米长，持续几个小时。
These waves, internal waves, can be tens of kilometers long and can last several hours.
目前SAR经常用于内波的研究，但是SAR也存在着卫星重访周期长、数据费用高、图像噪声较大等的不足。
SAR imagery are usually available at the present research, however SAR are deficient for the long revisit period, high expense and strong noise.
从马托格罗索州南部的一个整齐的产牛小镇波科内的边缘开始，这条145公里长的轨道上点缀着125座不安全的木桥，每个拐弯处都有一个西尔万剧场。
Starting at the edge of Pocone, a tidy cattle town in southern Mato Grosso, this 145-kilometer track is punctuated by 125 precarious wooden Bridges, with sylvan theater at every bend.
从马托格罗索州南部的一个整齐的产牛小镇波科内的边缘开始，这条145公里长的轨道上点缀着125座不安全的木桥，每个拐弯处都有一个西尔万剧场。
Starting at the edge of Pocone, a tidy cattle town in southern Mato Grosso, this 145-kilometer track is punctuated by 125 precarious wooden Bridges, with sylvan theater at every bend.
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