CF

The broadband FM signals and the narrowband CF signals travel out to a target, reflect from it, and return to the hunting bat.

宽带 FM 信号和窄带 CF 信号传输到目标，从目标反射回来，然后返回猎蝠。

Responding to changes in the CF echo´s frequency, bats of some species correct in flight for the direction and velocity of their moving prey.

有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。

Because of their narrow bandwidth, CF signals portray only the target´s presence and, in the case of some bat species, its motion relative to the bat´s.

因为它们的频宽很窄，CF 信号只能描绘目标的存在，而对于一些种类的蝙蝠来说，CF 信号还能描述目标相对于蝙蝠的运动。

I used a 128mb CF card for this project.

对于本项目，我使用了一块128 MB cf卡。

CF slots are just small PCMCIA slots, mostly.

CF插槽大部分就是小一点的PCMCIA插槽。