extension

extension
noun

a part that is added to something to enlarge or prolong it; a continuation
延长部分；扩大部分；扩建部分；附加部分
the railway's southern extension.
铁路向南延伸部分。
■a room or set of rooms added to an existing building
建筑物的扩建部分
■[mass noun]the action or process of becoming or making something larger
扩大
the extension of the President's powers.
总统权力的扩大。
■an application of an existing system or activity to a new area
（现有体系或活动范围的）延伸
direct marketing is an extension of telephone selling.
直销是电话销售的延伸。
■an increase in the length of time given to someone to hold office, complete a project, or fulfil an obligation
延期；放宽的期限
■(chiefly Brit.)permission for the sale of alcoholic drinks until later than usual, granted to licensed premises on special occasions
(主英)对售酒场所进行延时营业的许可
■(Computing)an optional suffix to a filename, typically consisting of a full stop followed by several characters, indicating the file's content or function
(计算机)文件扩展名
■(extensions)lengths of artificial hair woven into a person's own hair to create a very long hairstyle
（植入真发中以增加头发长度的）假发丝
(亦作 extension lead 或 cable)a length of electric cable which permits the use of appliances at some distance from a fixed socket
延长导线
■a subsidiary telephone on the same line as the main one
和主机共用一条线路的电话分机
■a subsidiary telephone in a set of offices or similar building, on a line leading from the main switchboard but having its own additional number
有独立号码的电话分机
[usu. as modifier]extramural instruction by a university or college
（大学开设的）业余进修教育
a postgraduate extension course.
研究生进修班课程。
[mass noun]the action of moving a limb from a bent to a straight position
（四肢的）伸展；伸直
seizures with sudden rigid extension of the limbs.
发病时具有四肢突然间僵直症状的疾病。
■the muscle action controlling this
肌肉的伸展功能
triceps extension.
三头肌伸展功能。
■(Ballet)the ability of a dancer to raise one leg above their waist, especially to the side
(芭蕾)（舞蹈者将腿举到腰部以上的）伸腿（能力）
she has amazing extension.
她的伸腿能力让人惊讶。
[count noun]he could perform 180-degree extensions.
他可以进行180度伸腿。
■(Medicine)the application of traction to a fractured or dislocated limb or to an injured or diseased spinal column to restore it to its normal position
(医)牵伸（术）
■the lengthening of a horse's stride at a particular pace
（马）伸长步幅
(Logic)the range of a term or concept as measured by the objects which it denotes or contains, as opposed to its internal content
(逻)外延。常与 intension 相对
■(Physics & Philosophy)the property of occupying space; spatial magnitude
(物理，哲)广延（性）
nature, for Descartes, was pure extension in space.
对于笛卡尔来说，自然界就是纯粹的空间广延。

常用词组
by extension

taking the same line of argument further
乃至，甚至于
the study shows how television and, by extension, the media, alter political relationships.
这项研究表明电视，乃至媒体是如何改变政治关系的。

派生
extensional
adjective
语源

late Middle English: from late Latin extensio(n-), from extendere 'stretch out' (see extend)

热门查询

考试词汇表