The main morphological feature of this proton active region is the clockwise spiral structure of the penumbral filaments of the large preceding spot "A".

这个质子活动区的主要形态特点是前导大黑子A的半影纤维的顺时针旋涡结构。

youdao

Factoring in both, Okrent sees 1960 and the few years preceding it as baseball's true sweet spot.

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Constituents are ranked and chosen by their correlation to the spot price of oil in the quarter preceding the selection day.

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As she told the story of the preceding few weeks, a time when several different venture capital funds in New York were vying for a spot in her Series A round, pestering her with phone calls, lunch offers and even the occasional gift, it struck me.

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