Blandford says two primary parameters characterize black holes.

布兰德福德认为有两个主要的参数控制着黑洞的特性。

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The short exposure of sedimentary intervals at the top of a meter-scale cycle is the primary mechanism for forming acicular-dissolved holes in this region.

一个米级旋回的顶部所出现的沉积间断短期暴露是针孔状溶孔形成的主要机制。

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