单词	iso echo contour
释义	iso echo contour 等回波线；回波强度的等值线。
随便看	He sustained a foot injury He sustained a serious wound in the stomach He sustains a terrible head injury Hesvan HESW Heswall He swallowed drily and nodded He swallowed hard He swallowed the food hastily He swallowed the insult without comment He swallowed the pills with a cup of water He swallowed without chewing heswalls He swam across the channel he swam across the English Channel He swam the furthest He swam the Yangtze He swam under the boat He swap his old car for a new motorcycle He swarmed up the tree He swatted a fly that was annoying him He swayed his head from side to side with worry He swayed slightly He swayed slightly,as if about to fall He swayed the biggest nation in the world