电信专业英英词典I-1
I-MAC
isonchronous media access controller
IDN
integrated digital network
IEC
International Electrotechnical Commission
Impairments
Impairments is the (e.g., transmission channel and signal impairments) degradation 1 caused by practical limitations of channels, (e.g., signal level loss or attenuation 2, echo, various types of signal distortion, etc.) or interference induced from outside the channel (such as power-line hum or interference from heavy electrical machinery). The measurement of transmission impairments is an important aspect of predicting whether or not telecommunications systems will sustain the business applications they are intended to support. Signal-to-noise ratio, percent distortion, frequency response, and echo are measurements that define impairments most noticeable by users in analog 3 voice systems.
Inbound Signaling
Inbound signaling uses not only the same channel path as the voice traffic, but the same frequency range (band) used for the voice traffic.
Independent Telephone Company (ITC)
ITC is a local exchange carrier that is not one of the 22 divested 4 Bell-operating companies. ITCs are not generally subject to the restrictions 5 of the MFJ, although some of the larger ones are bound by separate consent decrees. Southern New England Telephone and Cincinnati Bell are generally considered ITCs from a regulatory point of view.
Integrated Services Digital Network (ISDN)
ISDN consists of a set of standards being developed by the CCITT and various U.S. standards setting organizations. The CCITT formal recommendations, adopted in October, 1984, first defined ISDN as ". . . a network, in general evolving from a telephony integrated digital network, that provides end-to-end digital connectivity to support a wide range of services, including voice and non-voice, to which users will have access by a limited set of standard multipurpose user- network interfaces 6." The concept of user access to an existing integrated digital network (IDN) underlies 7 the ISDN.
Inter-LATA Services
Inter-LATA services are revenues, functions, etc., that relate to telecommunications originating in one LATA and terminating outside that LATA. An interexchange carrier (IXC) is a company which provides telecommunications services between LATAs. (the domain 8 of IXCs).
Intermediate Cross Connects
In a premises 9 distribution system, intermediate cross connects are cross-connects located telecommunications closets.
- There are serious problems of land degradation in some arid zones.在一些干旱地带存在严重的土地退化问题。
- Gambling is always coupled with degradation.赌博总是与堕落相联系。
- The attenuation distance and transmittance are connected together, they influence each other. 衰减距离attenuation)和能见度(transmittance)是联系在一起的，并相互影响。 来自互联网
- Attenuation of light is in the form of absorption. 光是以吸收的形式衰减。 来自辞典例句
- The analog signal contains high-frequency video information,which helps make up the picture.模拟信号包括有助于构成图像的高频视频信息。
- The analog computer measures continuously,without proceeding step by step.模拟计算机不是一步一步地进行，而是连续地进行量度。
- He divested himself of his jacket. 他脱去了短上衣。
- He swiftly divested himself of his clothes. 他迅速脱掉衣服。 来自《简明英汉词典》
- I found the restrictions irksome. 我对那些限制感到很烦。
- a snaggle of restrictions 杂乱无章的种种限制
- If the class needs to be reprogrammed, new interfaces are created. 如果class需要重新程序设计，新的interfaces创建。
- Interfaces solve this problem of evolving code. Interfaces解决了代码升级的问题。
- I think a lack of confidence underlies his manner. 我认为他表现出的态度是因为他缺乏信心。 来自《简明英汉词典》
- Try to figure out what feeling underlies your anger. 努力找出你的愤怒之下潜藏的情感。 来自辞典例句
- This information should be in the public domain.这一消息应该为公众所知。
- This question comes into the domain of philosophy.这一问题属于哲学范畴。