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1·They fired three distress signals.

他们发射了3次遇难求救信号。《柯林斯英汉双解大词典》

2·The crew did not send out any distress signals.

机组人员没有发出任何求救信号。《柯林斯英汉双解大词典》

3·We overlook all sorts of warning signals about our own health.

我们会忽视关于我们健康的各种警报信号。《柯林斯英汉双解大词典》

4·The smoke signals from the bank suggest further cuts are coming.

来自此银行的各种信号表明会有进一步的降息。《柯林斯英汉双解大词典》

5·Reducing prison sentences would send the wrong signals to criminals.

减刑会向犯罪分子发出错误的信号。《牛津词典》

6·Callahan posits that chemical elements radiate electromagnetic signals.

卡拉汉假定化学元素放射电磁信号。《柯林斯英汉双解大词典》

7·Radio signals received from the galaxy's centre back up the black hole theory.

从该星系中心接收到的无线电信号证实了黑洞理论。《柯林斯英汉双解大词典》

8·About 60,000 subscribers have special adapters to receive and decode the signals.

大约60000用户有专用适配器来接收和转换信号。《柯林斯英汉双解大词典》

9·It will need other chips to reconvert the digital code back into normal TV signals.

需要用其他芯片把数字代码重新转换成普通的电视信号。《柯林斯英汉双解大词典》

10·He demonstrated how audio signals could be transmitted along cables without distortion.

他演示了音频信号如何通过电缆传输而不失真。《柯林斯英汉双解大词典》

信号

1·They fired three distress signals.

他们发射了3次遇难求救信号。《柯林斯英汉双解大词典》

2·The crew did not send out any distress signals.

机组人员没有发出任何求救信号。《柯林斯英汉双解大词典》

3·We overlook all sorts of warning signals about our own health.

我们会忽视关于我们健康的各种警报信号。《柯林斯英汉双解大词典》

4·Reducing prison sentences would send the wrong signals to criminals.

减刑会向犯罪分子发出错误的信号。《牛津词典》

5·Callahan posits that chemical elements radiate electromagnetic signals.

卡拉汉假定化学元素放射电磁信号。《柯林斯英汉双解大词典》

标志

1·Researchers are still working to determine what effect these seasonal signals have on humans.

关于这些季节标志对人类有何影响，研究人员仍在努力发掘中。

2·In the meantime, other scientists had identified a receptor in a group of neurons that enable fruit flies to smell carbon dioxide, which signals the presence of a good meal of tasty yeast.

同时，其他科学家已经在一组神经元中识别出了一个受体，这个受体能使果蝇闻到二氧化碳，二氧化碳是一顿美味的活酵母呈现的标志。

3·In the meantime, other scientists had identified a receptor in a group of neurons that enablefruit flies to smell carbon dioxide, which signals the presence of a good mealof tasty yeast.

同时，其他科学家已经在一组神经元中识别出了一个受体，这个受体能使果蝇闻到二氧化碳，二氧化碳是一顿美味的活酵母呈现的标志。

4·Even if you weren't ill the past few months the second trimester signals an end to your baby's most vulnerable development period allowing you a bit more freedom.

即使你在过去的几个月中没有不舒服，怀孕中期也标志着你的婴儿已经度过了最容易受伤害的时期，这会给你更多的自由空间。

5·Even if you weren't ill the past few months, the second trimester signals an end to your baby's most vulnerable development period, allowing you a bit more freedom.

即使你在过去的几个月中没有不舒服，怀孕中期也标志着你的婴儿已经度过了最容易受伤害的时期，这会给你更多的自由空间。

发信号

1·The recognition of a letter flashing on a screen signals the word processor to choose that letter.

识别屏幕上闪烁的字母，给文字处理器发信号，以选择那个字母。

2·This actually goes to a stub function which stops the SPE processor, signals the PPE, and the PPE actually performs the function call.

这实际上会转入到一个stub函数，该函数可以停止SPE处理器、发信号给PPE，而由PPE实际执行函数调用。

3·Get plenty of sunshine - sun in the morning signals the body and mind to wake up.

早晨的阳光将发信号给你的身体，唤醒你的头脑。

4·Reasonable level of cover Pneumatic rotary device, with no damage to cap surface, hopper cover signals within the lack of features such as automatic replenishment cover.

水平回转式气力理盖器，具有不损坏瓶盖表面，料斗内缺盖发信号自动补充盖等功能。

表示

1·This approach means that an h1 element signals the beginning of a group at this level.

该方法意味着h1元素表示某个组在这个级别的开始部分。

2·Leaning away signals you've heard enough.

后倾则表示你已经听够了。

3·A key on the terminal keyboard that usually signals the end of user input. This also causes printing or displaying to start again at the far left margin, down one line.

终端键盘上的一个键，通常表示用户输入结束，同时在下一行的最左边重新开始打印或显示。

(1)communication signals通信信号（communication signal的复数形式）

(1)signals and systems信号与系统