Because of their narrow bandwidth, CF signals portray only the target's presence and, in the case of some bat species, its motion relative to the bat's.

因为它们的频宽很窄，CF 信号只能描绘目标的存在，而对于一些种类的蝙蝠来说，CF 信号还能描述目标相对于蝙蝠的运动。

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Her parents kept her on a tight rein with their narrow and inflexible views.

她的父母目光短浅而又固执地严格控制着她。

《柯林斯英汉双解大词典》

Some people seem willing to work around the clock in their narrow specialty.

有些人似乎愿意在他们狭隘的专业领域夜以继日地工作。

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We worked as our fathers did,". Now,the farmers plant their crops closer together and run water through narrow trenches.

VOA: standard.2009.12.10

They're simply working within their own very narrow ambit.

他们只是简单地在有限范围的内部工作

耶鲁公开课 - 古希腊历史简介课程节选

They look in the professional people who are able to manage their emotions better and lead to positive emotions, get out of this narrow and constrict to the broaden and build are in the long term more successful.

他们调查专业人士,能更好地控制自己的情绪,获得积极情绪，脱离狭窄收紧进入扩建的人,长远会取得更大成功。

哈佛公开课 - 幸福课课程节选

The states might act against their narrow self-interests, and collectively create a nationwide sales-tax system.

ECONOMIST: Taxing the Internet

Unfortunately, the Democrats were able to exploit their narrow window of opportunity to pass Obamacare.

FORBES: So That Freedom May Live, Obamacare Must Die

Your start-up can take advantage of their narrow range of decision routines to take their market share.

FORBES: Five Resources That Start-ups Must Exploit To Win