signal

Great leaders recognize the weak signals or slight signs that point to big changes to come.

出自-2017年6月阅读原文

Wireless devices will transmit signals so as to activate the alarm once something wrong is detected.

出自-2016年12月阅读原文

That approach will eliminate most cord-cutting concerns—but what about their wireless equivalent, jamming? 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?Jamming concerns are nothing new, and they're not unique to security systems.

出自-2016年12月阅读原文

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.

出自-2016年12月阅读原文

Any device that's built to receive a wireless signal at a specific frequency can be overwhelmed by a stronger signal coming in on the same frequency.

出自-2016年12月阅读原文

So when a French submarine (潜水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.

出自-2010年6月阅读原文

When submerged, they're also able to emit signals from depths of 20,000 ft.

出自-2010年6月阅读原文

Homing signals sent by the pilot before the crash

出自-2010年6月阅读原文

They have stopped sending homing signals.

出自-2010年6月阅读原文

For example, a Colombian who wants someone to approach him often signals with a hand movement in which all the fingers of one hand, cupped, point downward as they move rapidly back and forth.

出自-2014年6月听力原文

Were they tuned off because an American had the nerve to instruct Japanese in their own art form or they deliberately tried to signal their rejection of her?

出自-2011年12月听力原文

Learning how different cultures signal respect can help you avoid misunderstandings

出自-2011年12月听力原文

Their behaviors do not constitute a warning signal.

出自-2016年12月阅读原文

Scholars warn that Antarctica's political drift could blur the distinction between military and civilian activities long before the continent's treaties come up for renegotiation, especially in parts of Antarctica that are ideal for intercepting ( ' , 拦截) signals from satellites or retasking satellite systems, potentially enhancing global electronic intelligence operations.

出自-2016年12月阅读原文

It provides new early-warning signals for identifying teens in trouble.

出自-2016年12月阅读原文

LOL signals basic empathy)'(同感)between texters.

出自-2014年6月阅读原文

The Home Depot approach to craftsmanship - simplify it, dumb it down, hire a contractor - is one signal that mastering tools and working with one's hands is receding in America as a hobby, as a valued skill, as a cultural influence that shaped thinking and behavior in vast sections of the country.

出自-2013年6月阅读原文

They signal future economic trends

出自-2013年6月阅读原文

Over the past two years, the figures on imports and exports seem not to signal a double-dip recession – a renewed decline in the broad level of economic activity in the United States – but an economic expansion.

出自-2011年12月阅读原文

It signals decreasing domestic demand for goods and services.

出自-2011年12月阅读原文

To test how responsive dolphins are to various signals.

出自-2012年6月听力原文

Were they tuned off because an American had the nerve to instruct Japanese in their own art form or they deliberately tried to signal their rejection of her?

出自-2011年12月听力原文

Learning how different cultures signal respect can help you avoid misunderstandings

出自-2011年12月听力原文

At Pullman's signal, each man turned his Jackscrew the same amount at the same time, thereby raising the building slowly and evenly.

2015年高考英语湖南卷 阅读理解 阅读B 原文

Body language can give away a lot about your mood, so standing with your arms folded can send out a signal that you are being defensive.

2015年高考英语浙江卷 单项填空 原文

He rushed into the station building and came back with a signal light.

2016年高考英语浙江卷（10月） 阅读理解 阅读A 原文

In order not to be heard, she pointed her finger upwards to signal that someone was moving about upstairs.

2015年高考英语湖北卷 单项选择 原文

Pheromones can signal that an animal is either ready to fight or is feeling open to partnerships.

2015年高考英语上海卷 完形填空 原文

Rani's friendliness―her warm smile, her nods, her "I'm here for you" attitude―were all silent signals that didn't travel through wires.

2016年高考英语全国卷2 完形填空 原文

The purchase price could also be a signal that an established company is buying a new-born threat.

2017年高考英语江苏卷 阅读理解 阅读C 原文

This observation hints that effective embryonic learning could signal neurological strengths of children to parents.

2017年高考英语江苏卷 阅读理解 阅读B 原文

Unable to tell whether someone really objects to behavioural ads or whether they are sticking with Microsoft’s default, some may ignore a DNT signal and press on anyway.

出自-2013年考研阅读原文

Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.

出自-2013年考研阅读原文

It tells the fashion industry that it must take responsibility for the signal it sends women, especially teenage girls, about the social tape-measure they must use to determine their individual worth.

出自-2016年考研阅读原文