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| 81. | The most common way to hook up PCs to networks is with Ethernet, a kind of network that is fast and cheap but limited to a total distance of less than a mile . |
| PC机与网络相连最常用的是Ethernet,这是一种快速而经济的网络，但距离限为一英里以下。 |
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| 82. | It studies how to solve the wireless serial cmmunication problem between S7-200 PLC and PC compute based on free port mode and give an example to water supply system. |
| 结合城市供水系统,说明如何以自由口模式实行S7-200系列PLC与PC机间无线串行通讯问题。 |
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| 83. | The beauty of the NC, they say, is that it addresses the headaches associated with owning and managing a PC. |
| 他们说，NC的长处是它解决了与拥有和管理PC机有关的令人头痛的问题。 |
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| 84. | Fax servers that are based on traditional Class 1 and Class 2 data/fax modems (similar to the ones found in PCs) don't have this capability. |
| 那些基于传统的1类和2类数据/传真modem（与PC机中的modem相似）的传真服务器不具备这种能力。 |
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| 85. | Like NCs, the NetPCs are appropriate for mid- to large-size companies that require centralized PC management and where there is no need for end-user system modification. |
| NetPC与NC相似，适合中大型公司使用，这些公司要求集中式的PC机管理，并且不需要修改最终用户系统。 |
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| 86. | All you have to do is to turn on your PC or terminal, and your connection is ready to use, the disadvantage of course. |
| 你要做的只是把PC机或终端机接上电源，与因特网的联结就告完成（做好使用的准备）。 |
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| 87. | Unified messaging funnels e-mail, fax and voice-mail messages into a mailbox that can be accessed by a PC. |
| 统一的消息传输把电子邮件、传真和话音邮件等消息统统汇集到可由PC机访问的邮箱中。 |
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| 88. | When voice telephony is just another kind of LAN application, the PC becomes the telephone, and the LAN-together with its call-control server becomes the PBX. |
| 当话音电话成了另一种局域网应用时，PC机就成了电话，具有呼叫控制服务器的局域网成了用户交换机。 |
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| 89. | They describe NCs as "stripped-down PCs". Why?They say that people want to go back to history referring to the ages of dumb terminals and mainframes. |
| 他们把NC描绘成“删减了的PC机”，为什么？他们说，人们要回到哑终端和主机时代的历史。 |
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| 90. | Aiming at the need of communication between uninterrupted power supply(UPS) and person computer (PC), design of communication software and hardware system was p resented. |
| 针对UPS网络化功能的需求,设计了一种基于现场总线Modbus协议的UPS与PC机通信的软硬件系统。 |
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