您要查找的是不是：
- direction listening device 声波测向器
- The spy staged a break-in to plant a listening device. （间谍破门而入，安装窃听装置。）
- An embassy that was compromised by hidden listening devices. 因隐藏着窃听器而处于险境的大使馆
- To equip(a room or telephone circuit, for example) with a concealed electronic listening device. 装窃听器安装隐蔽的电子监听装置（例如在房屋里或电话线路上）
- To equip(a room or telephone circuit,for example) with a concealed electronic listening device. 装窃听器安装隐蔽的电子监听装置（例如在房屋里或电话线路上）
- To use electronic listening devices to listen inon toe conversatios of others. 使用电子收听装置来偷听他人的谈话。
- Her advocacy of market-based approaches is inspired not by ideology but the firm conviction that markets are the best “listening device” to ascertain the real needs and wants of poor consumers. 她对基于市场的处理方法的拥护不仅源自意识形态，也源于她坚信市场是确定贫穷消费者真实需要和欲求的最好的“倾听手段”。
- To use electronic listening devices to listen in on the conversations of others. 使用电子收听装置来偷听他人的谈话。
- Navy team is bringing in high-tech underwater listening devices to detect pings from data recorders. 美国海军人员正利用高科技水下探测仪搜寻“黑匣子”发出的信号。
- Objective To investigate the damage effects personal listening devices(PLD) on hearing in middle school students. 目的调查随身听装置对中学生听力的损害情况。
- He and his fellow band created out, is a neglect of the skills they need to make a direct listeners to experience the inner world of their own expression. 他和他的乐队同伴所营造出的，是一种可以忽视其所需要技巧、令听者直接体验到的对他们自己内心世界的表达。
- US Navy team is bringing in high-tech underwater listening devices to detect pings from the data and voice recorders. 美国海军已出动高科技水下监听设备，全力搜寻黑匣子。
- The exhibit also shows listening devices and a small spyglass called a monocular used during the same period. 这次展览还展示了同一时期使用的收听设备和一种被称作单目镜的小观察镜，
- A device for indicating wind direction. 风标用来显示风向的设施
- The teams also use highly trained dogs and sophisticated listening devices to help pinpoint those locations. 建筑专家认为在废墟中越挖越深反而会减少幸存者的数量，救援队还应该使用训练过的搜救犬和复杂的监听设备来检查这些位置。
- You can have your subs emit sonar pings to see other objects, but these pings will give away their location to any listening devices. 你可以让你的潜艇发出声纳响声去寻找其他的目标，但是这些响声会把你的位置暴露给任何收听设备。
- When scientists brought listening devices down under the sea, they heard a large collection of whistles, beeps, and grunts. 当科学家把收听设备装到海底，他们听到了大量各种各样的口哨声、嘟嘟声和哼哼声。
- The rescuers used listening devices and dogs to triangulate her location.Then they cut a hole through the roof and, beneath that, the collapsed walls. 救援人员利用电子收听装置和救援犬确定她的方位，之后挖了个穿过房顶和下面坍塌的。
- A device used to convert direct current into alternating current. 反用换流器用于变直流电为交流电的仪器
- In a little while we lost our sense of direction. 一会儿我们就辨不清方向了。
