A technique for Marine seismic acquisition around salt domes or other circular features in which the acquisition vessel travels in a spiral path above the feature.

海上环绕盐丘或其它环状物体进行地震数据采集时使用的一种技术，采集船只在环状物体上方以螺旋形路径航行。

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The protean set, meanwhile, will feature giant chandeliers, a circular dias that juts out into the audience and 20 moving screens that will coalesce at certain points to form a single image.

与此同时，能千变万化的舞台场景将出现巨大的吊灯，朝观众席延生的圆形舞台，20个移动的电影屏幕将在特定的点上结合形成单一画面。

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The master bathrooms feature a circular sliding wall that allows the bathroom to become part of the bedroom and share its spectacular city views.

主浴室配有一个圆形的滑动墙，让浴室成为卧室的一部分，并分享其壮观的城市景观。

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What's more, Pratt said his map showed that the feature is circular, which is characteristic of impact craters.

MSN: Massive meteorite crater found in Canadian Arctic

Another distinct feature seen in the video is a massive circular structure in the south pole region.

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