每秒脉冲(PPS)指的是在一秒钟内的脉冲或脉冲拨号次数。

Pulses per second (PPS) refers to the number of pulses per second and the number of dial pulses per second.

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脉冲星是已经死亡的小型中子星，直径只有20公里(12.4英里)左右，每秒旋转数百次，同时还会向外发出无线电光束。

Pulsars are tiny, dead neutron stars that are only around 20 kilometers (12.4 miles) in diameter and spin hundreds of times a second, emitting beam of radiation.

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“我们在每根线缆的两端每秒加一个电脉冲”Petrenko说，“所有的冰就都脱落了。”

"We apply [an] electric pulse to either end of the cable for about one second," Petrenko says, "and all ice attached to it falls down."

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