An early strain of research claimed that when we watch television, our brains mostly exhibit slow alpha waves—indicating a low level of arousal, similar to when we are daydreaming.
一项早期的研究表明，当我们看电视时，我们的大脑大多表现出缓慢的阿尔法波，这表明我们的兴奋程度程度较低，类似于做白日梦的状态。
Television images showed waves of more than 12 feet roaring inland.
电视画面显示，超过12英尺的波浪吼叫着冲向陆地。
Television showed waves up to 10 metres high in some areas sweeping buildings and vehicles inland.
电视画面显示高达10米的海浪冲走了建筑物和车辆。
The spectacle was all the more remarkable for being carried live on television, even as the waves engulfed flat farmland that offered no resistance.
所有这些现场直播中更为引人注意的景象是，海浪毫无阻力地吞没了平坦的农田。
Television nis the transmission and reception of images of moving objects by radio waves.
电视通过无线电波发射和接受活动物体的图象。 。
Television is the transmission and reception of images of moving objects by radio waves.
电视通过无线电波发射和接受活动物体的图象。
Microwaves, which have a higher frequency than ordinary radio waves, are used routinely in sending thousands of telephone calls and television programs across long distances.
微波由于比一般无限电波的频率高，因此，通常用于发送成千上万的电话信号和长距离电视节目。
Antenna: Component of radio, television, and radar systems that directs incoming and outgoing radio waves.
天线：无线电、电视、雷达系统中的一个部件，用以导入和送出无线电波。
Television is the transmission and reception of images of moving objects by radio waves.
电视通过无线电波发射和接受活动物体的图像。
Television is the transmission and reception of images of moving objects by radio waves.
电视是通过无线电波的传送和接收的移动物体的图像。
Television stations, satellites, electricity, radio waves, computers, the Internet, new technology, laser beams, magnetic fields, telepathy, air conditioners, ice, icebergs, glaciers.
电视台，卫星，电力，无线电波，计算机，互联网，新技术，激光器，磁场，心灵感应，空调，冰，冰山，冰川。
In order to transmit an event such as the Olympics via satellite, television signals are first changed into radio waves, which are then sent from a station on earth to a orbiting satellite.
为了能通过卫星传送像奥运会这样的比赛项目，电视信号要先转换成无线电波，然后从某个地面发射站把无线电波送上轨道卫星。
Scientists have proved that electrical items including mobile phone and television sets emit magnetic waves when used.
科学家已经证明，电子产品包括行动电话和电视机，使用时会发出电磁波。
These radio waves are very weak when they arrive at the television receiving sets on earth but they can be amplified again to make up for this loss in intensity.
当这些无线电波到达地球，被电视接收机收到时是非常弱的，但它们能够被再放大以补偿这种强度的损失。
The satellite receives the radio waves, amplifies them, and sends them back to earth, where another station picks them up and changes them back into television signals.
卫星接收无线电波，增强后再发送回地球，另一个站接收这些信号，把信号再变为电视信号。
The satellite receives the radio waves and sends them back to earth, where another station picks them up and changes them back into television signals.
卫星收到无线电波之后，再把它们发回地球，由地球上的另一个地面站接收信号，并把它们转换回电视信号。
The proposed algorithm only USES the carrier waves of television stations, and is quite simple in computation.
该算法只需提取电视台的载频信号，计算简单。
It employs ultra high frequency sound waves to form television images of internal organs.
它使用超高频率的声波来形成内部器官的电视图像。
In modern radio technology components such as communication, broadcast, television and radar system, the radiation and receiving of the radio waves are inevitably, then antenna is needed.
通信、广播、电视、雷达、导航等无线电技术设备中，都需要有无线电波的辐射和接收，进而离不开天线设备。
In modern radio technology components such as communication, broadcast, television and radar system, the radiation and receiving of the radio waves are inevitably, then antenna is needed.
通信、广播、电视、雷达、导航等无线电技术设备中，都需要有无线电波的辐射和接收，进而离不开天线设备。
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