计算机专业英语教程第5版翻译 绝对准确

DSL

@ DSL (digital subscriber line) is currently available only to users who are relatively close (three miles or less ) to a telephone switching station with telephone lines capable of handling DSL, and long waits for installation are not uncommon.

subscriber 用户 capable 有能力的

DSL目前只对那些较靠近电话交换站（3英里或小于3英里），有能力处理DSL电话线的用户可用，并且常要等很长时间安装。

Nevertheless, DSL is a popular broadband option.

Nevertheless 然而

然而,DSL是一项很受欢迎的宽带的选择。

DSL is sometimes offered at different speeds to fit different needs and budgets, such as a slower, less-expensive personal version and a faster business option.

Budgets 预算

DSL有时提供不同的速度以满足不同的需要和预算，例如慢速低价的个人版本和快速的商业选择。

The monthly cost of standard DSL service is about $50.

标准DSL的每月消费大约是50美元。

Cable 电缆

@ A third type of direct Internet connection-cable-is the most widely used home broadband alternative. Alternative 供选择的

第三种因特网直连类型是电缆，它是最广泛使用的家庭宽度选择。

Cable connections are very fast and are available to anyone with cable access whose cable provider has upgraded the system to support Internet access.

upgraded 升级

电缆连接是相当快的，可以让任何人通过电缆访问，电缆提供商升级了支持因特网访问的系统。

Just about all cable Internet access today is two-way (full-duplex), with the cable being used to transfer data in both directions.

今天几乎所有的电缆因特网访问是双向的（全双工），通过在两个方向上用来交换数据的电缆。

One disadvantage of cable is that all users in an immediate geographical area share the bandwidth of their local cable.

电缆的一个劣势是在邻近地区的所有用户共同使用他们本地电缆的带宽。

Though this may not prove to be a problem all the time, during high-use times of day--such as early evening--the speed of cable Internet service can slow down dramatically as your neighbors go online.

dramatically 戏剧的

尽管这并不能证明是一个问题，在一天的高使用时间电缆因特网服务的速度会变低，戏剧的你的邻居上线了。 Cost is about $40 per month, in addition to regular cable fees.

in addition to 除...之外 fee 费用

费用大概是每月40美元，除了常规的电缆费用外。

Satellite 卫星

@ Satellite Internet access is often the only broadband option in rural areas.

rural 农村的

卫星因特网访问是在农村地区唯一的宽带选择。

It requires a satellite modem and a transceiver satellite dish mounted outside the home or building. transceiver 收发器 dish 蝶形天线 mounted 安装

它需要人造卫星调制解调器和安装在室外或建筑物外的收发卫星蝶形天线。

The two-way satellite services available today, such as StarBand, are relatively reliable, though an unobstructed view of the southern sky is requited and access may degrade very heavy rainstorms.

虽然需要在蝶形天线收发方向的上空没有任何障碍，并且在大暴风雨期间访问性可能降低，但目前可用的两路人造卫星服务，如StarBand，是相当可靠的。

Typical cost is about $70 per month.

典型的费用大约是每月70美元。

Fixed Wireless 固定无线