为了抑制高频发射噪声引起的电磁波泄漏，就需要开发频率高损耗大的电磁波吸收材料，有效地吸收噪声能量。

Electromagnetic absorbing materials with high frequency and high loss are required to absorb the noise energy, aiming at restraining the electromagnetic leak induced by high-frequency emission noise.

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受此消息的影响，英石油以及同样牵涉到墨西哥湾石油泄漏事件的石油服务公司哈利·波顿(Halliburton)的股价急剧下跌。

The company's share price, along with that of Halliburton, an oil-services company that is also implicated in the Gulf of Mexico spill, fell sharply on the news.

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采用负压波法检测管线泄漏信号。

The negative pressure wave method was proposed for a pipeline leak detection system.

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