Whether the precursor is obvious is correlated to rock the character, and the precursor of AE rate is more apparent than the precursor of AE energy rate comparatively.

岩石的破坏前兆是否明显跟岩性有关，相比较而言，岩石破坏时的声发射率前兆比声发射能量率前兆更为明显一些。

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The upsetting test of metal powder sintered preform by blow speed of the hydraulic press, crank press, pneumatic hammer and high energy rate forging hammer was reported.

研究了用液压机、曲柄压力机、空气锤及高速锤的打击速度对粉末冶金烧结体进行的镦粗试验。

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Dynamic signals measured from experiment beams are first decomposed into wavelet packet components, then wavelet energy rate index is computed and used to detect location of damage.

首先将所得的结构响应信号进行小波包分解，然后通过小波包能量变化率指标进行损伤定位。

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He adds it is ratepayers, not taxpayers, who shoulder the cost of this renewable energy incentive, and any rate increases are "tough to swallow."

VOA: standard.2010.03.23

Year-over-year inflation was just 1.7%, while the core (ex-food and energy) rate was only 1.9%.

FORBES: U.S. Recovery Remains On Track With Modest Growth

We also know that smoking is a thermogenic agent, meaning that nicotine raises the rate of energy expenditure, metabolic rate.

NPR: Study Offers New Insights into Obesity

Most of the challenge, as we often see for solar cells, is just a matter of improving the energy conversion rate.

ENGADGET: All-carbon solar cell draws power from near-infrared light, our energy future is literally that much brighter