The maximum prospecting depth of the helicopter frequency domain EM system has been a problem of long controversy.

直升机频率域电磁系统的最大勘探深度究竟是多少，一直是有争议的问题。

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By utilizing two field regions with stronger EM field intensity, the pentagon antenna has not only higher EM intensity, but also over twenty times frequency bandwidth.

五边形天线合理利用了两个超宽强场区，使该天线不仅有高而平稳的场强而且能轻易达到二十倍频以上带宽。

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The apparent resistivity mapping of the helicopter frequency domain em system in magnetic area has been a problem of long controversy.

直升机频率域电磁系统在磁性地区的视电阻率填图，长期存在争议。

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Initial high-frequency data for September, though, point at a recovery in EM central bank demand for the common currency.

FORBES: EM Central Banks To Gobble Up Euros After Sharp Drop Against The Dollar

With increasing frequency, media outlets big and small are deciding that if you can't beat 'em, buy 'em.

FORBES: Blogging Into The Mainstream