他们还没有拿出美国电力科学研究院说需要的500万美元，这笔钱是为了通过制造更小更便宜的激光器来开发一个商业系统。
They have not yet come up with the $5 million that EPRI says will be needed to develop a commercial system, by making the lasers yet smaller and cheaper.
加州Palo Alto电力科学研究院研究指出现今压缩空气能源储存的成本是铅酸蓄电池的一半左右。
Studies by the Electric Power Research Institute in Palo Alto, Calif., indicate that the cost of compressed-air energy storage today is about half that of lead-acid batteries.
对中国电力科学研究院开发的PSASP程序与美国PTI公司开发的PSS/E 程序的暂态稳定计算数学模型进行了分析比较。
The mathematical models for transient stability calculation in PSASP and PSS/E respectively developed by China Electric Power Research Institute and PTI Inc. , in USA are compared and analyzed.
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