查询词典 radio frequency

A substrate on which a high-frequency circuit and an earth plate are mounted and an antenna system is built in the housing of a portable radio device.

便携式无线电设备的外壳中，设置了基板和天线系统，该基板上安装了高频电路和接地导板。

This thesis introduces the design and the realization of numerical frequency modulation high fidelity radio.

本文介绍了数字调频立体声收音机的设计与实现。

Therefore, the tuner is essential to the frequency modulation radio.

所以调频收音机中的频率调谐器是至关重要的。

This thesis introduces the design and therealization of numerical frequency modulation high fidelity radio.

本文介绍了数字调频立体声收音机的设计与实现。

The frequency modulation radio has been occupying an important position in people life of amusement.

调频收音机一直在人们的生活娱乐中占有非常重要的地位。

This process became known as frequency modulation, or FM radio.

但这一进程被作为调频，调频收音机或已知的。

Optical fiber transmission ; amplitude-frequency characteristic ; transmission delay ; consistency ; solar radio heliograph

模拟调制光纤传输；幅频特性；传输时延；一致性；太阳射电频谱日像仪

DUV is introduced. It permits signals to "hitch-hike" on existing microwave radio systems by using the lower end of the frequency band not normally used for voice.

DUV推出，它允许信在现有的微波无线电系统中"搭便车"，使用微波频带中的低端部分，通常不用于话音传输。

It permits signals to "hitch-hike" on existing microwave radio systems by using the lower end of the frequency band not normally used for voice.

作者： swtrunk 2004年12月10日，星期五 09：07 加入博采

In order to investigate and develop advanced flight simulator with high fidelity and provide the simulator with actual and reliable navigation data, the data structure requirements of navigation database for the system of flight simulator prototype are presented. These requirements including the airport, runway, very high frequency omnidirectional radio range, instrument landing system, distance measuring equipment system, nondirectional beacon and marker beacon.

为了研究开发高逼真度的飞行模拟器，并为之提供真实可靠的导航数据，提出了飞行模拟器原型系统导航数据库的数据结构要求，即机场、跑道、甚高频全向信标、仪表着陆系统、测距仪系统、中波导航台和指点信标的数据结构要求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。