The difference of these two belts in mineralization is mainly related to the different regional geological setting.

两个矿带成矿作用的差异，主要与所处的区域地质背景不同有关。

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Scientists don't know why, but one of Jupiter's two main cloud belts has disappeared — again.

——科学家也不知道为了什么，可是木星上两个主要云带之一已经再次消失了？

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The Van Allen belts are two doughnut-shaped rings of charged particles-one nestled inside the other-that encircle our planet.

范艾伦辐射带是由带电粒子组成的两个甜甜圈形状的环状物——其中一个挨靠在另一个内部——环绕着我们地球。

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Two breathing belts are wound tightly around my chest.

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He held on to the belts for just two years before Kelly Pavlik defeated him with a seventh-round knockout.

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Many have two or three tours under their belts.

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