As proved by the experiments, a number of free electrons and holes are existed in the unexposed silver halide emulsion micro-crystals. These factors are all essential to the fog center formation.

实验表明，在未经光照的卤化银乳剂微晶体中存在着一定量的自由电子和空穴，这些因素为灰雾中心的形成提供了必要的条件。

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Mergers cause gases to flow towards the galactic center, which can trigger phenomena like rapid star formation.

合并导致气体流向星系中心，从而触发象快速的恒星形成一类的现象。

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Instead, their large clouds of molecular gas and dust do, triggering furious episodes of star formation near the center of the cosmic wreckage.

相反其中巨大的分子、尘埃云气却搅在一起，在这宇宙废墟的中心附近引发激烈的恒星形成事件。

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The question is whether Netanyahu will stay on the right or move to the center in political jockeying over government formation.

CNN: STORY HIGHLIGHTS

Here's how it works: Griffin, usually lined up in the "pistol" formation a few feet behind the center, takes the snap.

WSJ: Alfred Morris: The Washington Waddle That's Impossible to Tackle