The coded signal is received by satellite dishes.
电码信号通过卫星天线接收。
Holly waited at a stoplight, impatient for the signal to change.
霍利在交通信号灯处不耐烦地等着信号改变。
A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
This act was a signal to his victim's friends that he was someone to be reckoned with.
这一举动是给为他所害者的朋友们的一个信号，告诉他们他是个必须被小心对付的人。
The signal changes constantly.
信号不断变化。
When the stem dies, its hormone signal also ceases.
当茎死亡时，它的激素信号也停止了。
However, he will not go until he receives the lawful signal.
然而，在收到合法的信号之前，他是不会走的。
Presently it occurred to Tom that maybe Huck might come this very night and give the signal.
汤姆忽然想到，也许哈克今晚就会来发出信号。
Photoreceptors are cells that respond to light by sending out a chemical signal.
光感受器是通过发出化学信号来对光作出反应的细胞。
Pinocchio answered with another blow, and that was the signal for the beginning of the fray.
皮诺乔回敬了他一下，这就是开始战斗的信号。
Consumers may take CSR spending as a "signal" that a company's products are of high quality.
消费者可能将企业社会责任支出视为企业产品质量高的“信号”。
The central bank's task is to unscramble price signals distorted by panic, not to protect the markets from a signal that they do not like.
中央银行的任务就是解读被恐慌扭曲的价格信号，而不是保护市场不受他们不喜欢的信号的影响。
The simple detection of a radio signal will be sufficient to answer this most basic of all questions.
对无线电信号的简单探测就足以回答这个最基本的问题。
At least some of the material must have retained the signal unaffected by subsequent changes in the environment.
至少有一些材料肯定保留了不受后续环境变化影响的信号。
First, consumers may take CSR spending as a "signal" that a company's products are of high quality.
首先，消费者可能将企业社会责任支出视为企业产品质量高的“信号”。
If we had to listen to that signal every time we felt an ache or pain, we wouldn't be able to do anything.
如果我们每次感到疼痛时都要听那个信号，我们就什么都做不了了。
While each box contains a beacon, the unit only has enough battery power to transmit a signal for 30 days.
虽然每个盒子里都有一个信标，但这个装置的电池只能够传输30天信号。
Everyone around us seems to agree by the way they cling to their phones, even without a signal on a subway.
我们周围的每个人似乎都认可，即使在地铁上没有信号，他们也会紧握手机不放。
A spaceship's position can be located by following its radio signal, or by using telescopes and radar.
宇宙飞船的位置可以根据追踪它的无线电信号来确定，也可以用望远镜和雷达来确定。
Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.
获得DNT信号并不意味着任何人都必须停止跟踪，尽管一些公司已经承诺会这样做。
We apologize to customers, but due to signal problems the 11:28 train to Hangzhou from Platform 15 has been cancelled.
我们向客户表示歉意，但由于信号问题，11：28从15号站台开往杭州的列车已经取消。
The best signal depends not only on its brightness but also on how well it contrasts with the background against which it must be seen.
最好的信号不仅取决于它的亮度，还取决于它与背景的对比度。
Only when many studies are combined in a meta-analysis will the faint signal of telepathy really become apparent.
只有当许多研究结合在一起进行荟萃分析时，心灵感应的微弱信号才会真正显现出来。
The predictive signal is a steady rhythm of alpha waves emanating from the brain's right hemisphere, which are closely associated with relaxing activities.
预测信号是大脑右半球发出的稳定节奏阿尔法波，与放松身心的活动密切相关。
There was a strict rule against turning round until one gave the signal, when all turned at once.
有一条严格的规定，在一个人发出信号，所有人一起转身之前，所有的人都不得转身。
By measuring the time required for a signal to travel between the satellites and the antenna, the car's location can be pinned down within 100 meters.
通过测量信号在卫星和天线之间传播所需的时间，汽车的位置可以被锁定在100米误差之内。
The light source must therefore be immensely brighter if it is to be used as a headlight to illuminate the path, than if it is to be used as a signal to others.
与用作被人识别的信号相比，如果用作照亮路途的头灯的话，光源必须要明亮很多。
If they detect something wrong while the system is armed, they'll transmit a wireless alert signal to a base station that will then raise the alarm.
如果他们在系统布防时发现了什么问题，就会向基站发送无线警报信号，然后基站会发出警报。
The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given signal strength and noise level.
在给定信号强度和噪声水平的情况下，以比特每秒为单位给出的最终限制是无差错通信的最大绝对速率。
With the right device tuned to the right frequency, what's to stop a thief from jamming your setup and blocking that alert signal from ever reaching the base station?
通过将正确的设备调整到正确的频率，如何防止小偷干扰你的设备阻止警报信号到达基站呢？
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