而根据现有的学说，在137亿年前，宇宙在“量子起伏”过程中凭空而生，而“量子起伏”是一种类似于所谓的虚无空间持续产生短周期实体粒子的过程。

This is that the universe popped out of nowhere about 13.7 billion years ago in a quantum fluctuation similar to the sort that constantly create short-lived virtual particles in so-called empty space.

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为在压气机整机进入深度失速前检测到失速起始信号，提出了一种基于平均数值差分的短周期扰动检测方法。

To detect stall inception signal before the whole compressor running into deep rotating stall, a method based on averaged numerical difference is developed to detect short length scale disturbance.

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并且在巨震前地震活动增强区内的活动性主要表现为短周期成分，在正常阶段出现的长周期却消失。

The activity in the seismicity enhanced region mainly showed short-period, and the long-period inthe normal stage disappeared.

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