The Mariana Trough is an active spreading back-arc basin.

马里亚纳海槽是一个正在扩张的弧后盆地。

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Geochemistry of the Chaokeshan ophiolite: Product of intra-oceanic back-arc basin?

内蒙朝克山蛇绿岩地球化学：洋内弧后盆地的产物？

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They are also found in volcanic “back-arc” basins behind ocean trenches, where one tectonic plate is sliding beneath another.

在海沟后侧的弧后盆地的火山中，此处是一个板块俯冲到另一板块的地方，也发现了该类通道，。

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Williams and Mirza Teletovic hit back-to-back shots from behind the arc to give the Nets a 36-29 lead.

WSJ: Brook Lopez helps Nets beat Hornets, 108-98

Yes, it feels good in the hand, owed in part to that matte plastic back and subtle arc S-like curve, but the materials feel cheap.

ENGADGET: Sony Xperia TL for AT&T hands-on (video) Mobile

Williams checked back in with 7:17 remaining in the half and needed less than a minute to reach 8 for 8, and his streak ended when he was short on a step-back attempt from beyond the arc with 5:50 to go.

WSJ: Williams hits 11 3s, scores 42 as Nets top Wizards