The measuring vibrating signal method may be used on real time, mean while, vibrating signal can be measured by peak to peak value or true virtual value .

对风机的振动量监测可以采用振动信号波形的实时监测，也可采用对峰峰值或有效值的实时监测。

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Under continuous wave pumping, backward amplified spontaneous emission output power (ASE-) rapidly increases to peak value, and then decreases monotonically to steady-state value.

在连续波泵浦下，反向自发辐射输出功率（ASE-）首先快速地增加到峰值功率，然后单调下降到稳态值；

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That's 75% off its peak value in January but still good enough to allow him to travel not just first class but in his company's private jet.

FORBES: Magazine Article

Since the market hit bottom in 2009, the value of property owned by REITs has gained 60% and is back to peak levels, according to an index compiled by Green Street Advisors.

WSJ: REIT Returns Up but Trail Broader Market

Now, we've recovered -- in part because of the policies that we put into place to stabilize the situation, the stock market has recovered 60-70 percent of its value from its peak.

WHITEHOUSE: The Economy and the American Family