They work by sending out pulses of high-frequency sound and then interpreting the reflections as images.To do all this, though, you need a device called a transducer.
它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
They work by sending out pulses of high-frequency sound and then interpreting the reflections as images. To do all this, though, you need a device called a transducer.
它们的工作原理是通过发出高频声波脉冲并将反馈的信息转变成图像，为了实现这一过程，你还需要一个叫做变频器的设备。
For example, if you have a purchase order total, the total can be recalculated inside the client device without sending data to and from the server.
例如，可以在客户设备上重新计算订单总额，而不需要和服务器交换数据。
Once installed, the Trojan starts sending SMS messages behind the scenes that cost several dollars per message, without the device owner knowing it.
安装后，在手机用户毫不知情的情况下，木马以每条短信几美元在后台开始发送短信。
The study also noted that most wireless device activities increased, including financial transactions, dowloading entertainment, and sending or receiving text messages, e-mails, and digital pictures.
该项研究也表明，绝大多数无线活动呈现明显的增长趋势，其中包括金融交易，娱乐节目下载，以及收、发短消息、电子邮件和数码图片等。
Once the device gets triggered in any of the events, devices start sending signals to the server.
一旦设备被事件触发，设备开始向服务器发送信号。
This device is capable of sending messages to the other hemisphere within ong or two seconds.
这个装置能够在一、两秒钟之内把信息发到另一个半球去。
A point-to-point line directly connects the sending and the receiving devices, and a multidrop line connects many devices, not just one sending device and one receiving device.
点到点线路直接连接发送和接收设备，而多点线路连接多个设备，而不仅仅是一个发送方设备和一个接收方设备。
It is only a matter of time before such a device is used to create the killer application in human-computer interactions: a way of stopping people from sending emails while angry.
这样的装置迟早都会用来创造一种很抢手的应用：阻止人在生气时发送电子邮件。
Infrared remote control device actualizes the system software parameters setting through the design of infrared sending and receiving circuit.
红外遥控模块通过设计红外发送和接收电路，实现系统软件参数的设置功能；
Using the continuous sending laser light source and semiconductor photoelectric position sensitive device, a high accurate tri-dimensional non-contact optical measurement system is designed.
利用连续发射的激光光源和半导体光电位置敏感器件，设计了一种三维非接触高精度的光学测量系统。
The invention provides a multimedia message group sending method, group sending requiring method, and a multimedia message management platform device.
本发明提供一种多媒体消息群发方法及群发请求方法、多媒体消息管理平台设备。
The coal sending device of this invention uses the sending way from descend to upward combining uprightness. This makes an effect of sending thin-layer coal.
本发明的送煤结构采用了从下往上 送煤和水平与垂直进煤相结合的方式，能够做到薄层送煤；
Beam receive Revamp on PPC - to take better advantage of sending files using Infrared or Bluetoothfrom the device itself and handling import of these received files.
束接受改造的PPC-以更好地利用传送档案利用红外线或b luetoothfrom装置本身和处理进口这些收到档案。
The proposed methods can realize the algorithm simulations for positioning, testing and evaluation of wireless location in the absence of the UWB sending and receiving device.
该方法解决了在没有UW B信号发送、接收装置时对无线定位算法的仿真、测试和评估。
The smart umbrella syncs with a smartphone app, sending users updates about weather conditions 30 minutes in advance, and reminders if they happen to leave the device behind.
这把智能雨伞与一款智能手机应用同步，可以给用户发送半小时后的天气情况的实时更新信息，并且在用户忘带雨伞的时候还能提醒用户。
The person who receives sound and light alarm sent by the sending-to-alarming device can make an immediate emergency response.
发送到报警装置，发出声光报警，令接到报警的人员立即作出应急反应。
The MCU and wireless remote control technology have been applied in the outlet, which has the ability of sending command signal and receiving device status signal in wireless way.
该插座综合应用了单片机技术和无线电遥控技术，具有无线电指令接收和状态返回的功能。
The device comprises the following parts: a control module, a modulating module, a sending module and a fiber fault position module. The invention reduces the cost of the fiber fault position system.
本发明通过使用具有光时域反射波长选择模块的光纤故障定位设备，具有了降低光纤故障定位系统投入成本的效果。
A lighting device, includes: a luminescent module, which is used for sending out the light beam;
照明装置，包括一发光组件，用于发射出光束；
A lighting device, includes: a luminescent module, which is used for sending out the light beam;
照明装置，包括一发光组件，用于发射出光束；
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