He says it is possible to detect different species of mosquito because their wings beat with a distinctive frequency.

他表示，检测不同种的蚊子是有可能的，因为它们翅膀扇动的频率有着明显区别。

youdao

If you can slow down the rhythm of your breathing, the frequency of your heart beat down.

如果能让呼吸的节奏放慢，心跳的频率就会跟着降下来。

youdao

The influence of time length and beat frequency on radar range is discussed.

讨论了信号时长和差拍频率对雷达作用距离的影响；

youdao

The story about the frequency of the dragonfly's wing beat is not the only rationale that is put forward for the technology.

BBC: Ultrasound mosquito repellents: Zapping the myth