1. The transmitter stays put, with its radio beam pointing in the direction we wish to explore, and the sail travels along the beam, picking up momentum from the radio waves. 发射器固定不动，它的无线电波指向我们希望探测的方向；探测器沿着电波的方向运动，从无线电波获取动力。
2. Using axicon-based optical devices can realize such transformations as Gauss' beam into a diffraction-free Bessel beam, solid beam and annular beam converting each other. 应用旋转棱镜和组合光学系统能够将高斯光束变换成“无衍射”贝塞尔光束，并能实现实心和环状光束的相互变换。
3. SCM system to collect the information to digital radio and digital wireless radio transmission, then digital radio receivers to receive the information to the computer. 系统中单片机采集到的信息传给数字电台，利用数字电台进行无线传输，再将数字电台接收机接收到的信息传给计算机。
4. SCM system to collect the information to digital radio and digital wireless radio transmission, then digital radio receivers to receive the information to the computer. 系统中单片机采集到的信息传给数字电台，利用数字电台进行无线传输，再将数字电台接收机接收到的信息传给计算机。
5. Fan Sidun Massachusetts the first experimental radio broadcasting, radio engineering from the Technical Standards, the radio from birth. 范斯顿的马萨诸塞实验电台首次广播，从广播工程技术标准上看，广播从此诞生。
网络释义
radio relay equipment radio relay set radio repeater set 无线电中继设备;
radio relay equipment radio relay set radio repeater set 无线电中继设备;
radio relay equipment radio relay set radio repeater set 无线电中继设备;
radio relay equipment radio relay set radio repeater set 无线电中继设备;
