用此条件判断，很自然地得出：在短周期变化中可能存在拍现象。

Using this conditions, we can naturally obtain the following conclusions: it is possible for the beats to exist in short period variations.

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毫无疑问的，这种变化在那些生命周期短，繁殖迅速的植物——如草本植物、蕨类和苔藓类——中体现的更为明显。

Quickest to relocate, not surprisingly, were plants such as herbs, ferns and mosses with shorter life spans and faster reproduction cycles, the researchers said.

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重力测井具有探测范围大、受井径变化影响小、重复观测周期短、不受目的层埋深限制等优点。

Gravity log has such advantages as wide investigation range, small effect of caliper variation, short repeated observation cycle, no limit for depth of the interested zone.

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