Such line-feeding arrangements including constant current circuits have been proposed for various applications, and have been used where it is possible to operate the lines on a constant current basis, and where it is desirable to limit the dissipation in the line-feed or to reduce the size of...
aTo expand operations to car and other motor vehicles 扩展操作到汽车和其他机动车[translate] aWANs cover large geographical areas; computers connect each other through telephone lines or cables.2 WANs盖子大地理面积; 计算机通过电话线或cables.2互相联络[translate]...
filled with a viscous hydrophobic compound. The outer diameter of a telephone cable does not exceed 75 mm, and the cables are usually placed in conduits having a standard diameter of 100 mm. Since telephone cables are used only for single-channel communication, there is a single pair of ...
a这些件明天早晨到达 These tomorrow morning will arrive[translate] a有许多陌生男人把它们砍走了 正在翻译,请等待...[translate] aA computer network consists of nodes or stations representing 正在翻译,请等待...[translate] atelephone lines, optical fiber cables or microwave channels. The[translate]...
Divide and conquer:Telephone Lines(POJ 3662) 电话线 题目大意:一堆电话线要你接,现在有N个接口,总线已经在1端,要你想办法接到N端去,电话公司发好心免费送你几段不用拉网线,剩下的费用等于剩余最长电话线的长度,要你求出最小的费用。 这一看又是一个最小化最大值的问题(也可以看成是最大化最小值的...
combines many types of media such as telephone lines ,cables,and air waves.AWAN often uses transmission facilities provided by common carries,such astelephone companies.WAN technologies generally function at the lower threelayers of the OSI reference model:the physical layer,the data link layer,and...
Providing access to a computer server by way of telephone lines, cables, network connections and the Internet Omogućavanje pristupa računalnom serveru putem telefonskih linija, kabela, mrežnih veza i interneta tmClass According to Daily Telegraph, the telephonic lines between London ...
The first half of the book is a text-book of the modern practice of telephone lines in America, and contains a large amount of good and interesting information on overhead and underground lines, poles, insulators, wires, conduits, cables, exchanges, and switchboards. This covers too wide a...
The combination according to the invention is particularly useful for the telephone base forming part of telephone which is to be wall mounted. Thus, the connector may be received in a recess in the rear surface of the base with all of the signal and power lines extending to the connector....
P1948 [USACO08JAN]电话线Telephone Lines 题意 题目描述 Farmer John wants to set up a telephone line at his farm. Unfortunately, the phone company is uncooperative, so he needs to pay for some of the cables required to connect his farm to the phone system. There are N(1≤N≤1,000)N(...