音标：[pә'rifәrәl] ；柯林斯词典等级：1 级；

a. 周边的, 周围的, 圆周的, 无关紧要的, 肤浅的
[医] 外周的, 周围的, 末梢的

n. (computer science) electronic equipment connected by cable to the CPU of a computer
a. on or near an edge or constituting an outer boundary; the outer area
s. related to the key issue but not of central importance

词型变化：名词复数形式 : peripherals
考试类型：[六级/托福/GRE]

词性分布：

形容词85%

名词15%

peripheral的用法和样例：

例句

用作形容词(adj.)

We dealt with the peripheral aspects of a cost reduction program.我们谈到了降低成本计划的一些外围问题。
The talks made progress on peripheral issues, but failed to resolve the main dispute between the two sides.谈判在次要的问题上取得了进展,但是没能解决双方的主要争端。

用作名词(n.)

Unfortunately, the speeds of peripheral devices have not kept pace.不幸的是外围设备的速度跟不上主机。
It minimizes distortion and peripheral vignetting at the wide end.资讯科技将扭曲和在广泛的结束使晕映的外围设备减到最少。

词汇搭配

peripheral operation外围操作,外部操作...
peripheral speed圆周速度,周速,边缘...
peripheral pump周边泵,旋涡泵...
peripheral equipment外围设备,外部设备...
peripheral device外围设备
peripheral chamber(原子能汽轮机中的)...
peripheral protein周围蛋白
peripheral nerve末稍神经
peripheral vision周围视觉,间接视力...
peripheral transfer外部设备数据传送...
peripheral system外围系统
peripheral clearance周围间隙
peripheral unit外部设备,外围设备...
peripheral length周边长度
peripheral resistance外周阻力,末梢阻力...
peripheral stress圆周(层)应力(零件...
peripheral velocity圆周速度
peripheral jet圆周喷射,切向喷射...
peripheral processor外围处理机
peripheral subsystem外部系统,外部设备,...

经典引文

Canadian cultural expression will remain peripheral to Canadians.
出自：Vancouver Province
To Eliot, war, as a historical event, was peripheral to its private moral meaning.
出自：L. Gordon
A widespread impression that the study of costume is a peripheral..domain.
出自：Antiquaries Journal

【近义词】

marginal边际的
outer外部的
outlying远离中心的
minor轻微的
unimportant不重要的
superficial表面的
circumferential圆周的
circumjacent周边的
circumscribing动词circumscri...
encircling动词encircle的现...
surrounding周围的
circumambient围绕的
ambient周围的
environal周围的
circumfluent周流的
unnecessary不必要的
unessential非本质上的
add-on追加
equipment设备
extraneous外来的
attachment附件
outside在外面
device装置
outward向外的
fringe流苏
bordering边缘(设立疆界...
exterior外部
incidental附带的
tangential离题的
nonessential非本质的
sideline(球场)边线
secondary次要的
computer peripheral计算机配件; 计算机外部...
peripheral device外围设备

【反义词】

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