兆周

研究了胰岛素（Ins）和去B链羧端五肽胰岛素（DPI）的250兆周核磁共振，发现DPI、Ins核磁共振谱之间存在着差异。

Studies have been made of the 250 MHz nuclear magnetic resonance spectra of insulin and DPI . Differences have been found between DPI and insulin spectra .

北天文台1988年日地联测中2840兆周太阳射电观测（英文）

2840 MHz Solar Radio Observations During 1988 Solar-Terrestrial Spacial Joint-Observation at Beijing Astronomical Observatory ( BAO )

测量了玻璃在频率为50兆周时的超声衰减系数。

The ultrasonic absorption coefficients α( attenuation ) at 50 MHz of several glasses were measured by Brillouin-scattering pulse echo technique .

这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。

This depends on the precise radio - frequency of the 21 - cm wavelength , or 1420 megacycles per second .

一台先进的兆周扫描仪用来测量人们在看到婴儿和成人脸部图像时大脑的活动

A state of the art meg scanner was used to measure people 's brain activity while they were looking at images of baby faces and adult faces .

着重讨论了该调制器的调制深度和匹配电路的设计计算，并就100兆周、200兆周和400兆周调制频率给出实验结果，这些结果与理论预期相一致。

Modulation depth of the modulator and - the design calculation of its match electronic circuit are discussed in particular , and experimental results at the modulation frequencies of 100 MHz , 200 MHz and 400 MHz , are given respectively . These results coincide with the theoretical expectations .