High frequent energy represents differences among images in different defocus position.

聚焦过程中，不同离焦点其图像差异体现在高频能量上。

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Close hydraulic connection and high frequent conversion relationship exist between river and groundwater.

河流和地下水之间存在着密切的水力联系和频繁的转化关系。

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As the application of the new technics on the preparation of surface composites, high frequent magnetic field has been regard.

高频磁场下表面复合材料的制备作为新工艺的应用，日益得到重视。

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Pragma, an expert in trade execution, has just published a study show how high-frequent trading (HFT) profits come at the expense of ordinary investors.

FORBES: High Frequency Traders And Current Market Structures Penalize Investors

The most interesting experiment is being done by Qantas at Sydney and Perth airports with high-tech frequent-flier cards that are embedded with an RFID (radio-frequency identification) chip.

BBC: In brief: Ash cloud threatens UK flights

And it is high maintenance, requiring frequent touch-ups and spot checks for smudging.

WSJ: Very Bright Lipstick, All the Time