艺术学 【摄影光线】 释 concentrator;spotlight 聚光罩 一种可以将光线导向一个特定的范围（通常是小的圆形面积），而不影响光线强度的圆锥形灯罩。 工学 [纯化设备] 释 concentrator 浓缩仪 利用离心力、加热和外接真空泵来进行溶剂蒸发，高效率回收分析样品的设备。
concentrator ①聚能器 ②浓缩器
网络与数据通信 有线网络 释文 concentrator 集中器
- working drawing estimate
- working earthing
- working electrode
- working environment design
- working environment rights
- working face of open pit
- working field
- working fluid system
- working gas storage capacity
- Working Girls in Special Economic Zone
- working group of silviculture/working circle
- Working Group on History of Irrigation, Drainage and Flood Control ，International Commission on Irrigation and Drainage
- working hypothesis
- working-laser material
- working magnification
- working mean
- working measurement standard
- working mechanisms of work safety and health
- working memory
- working memory area
- working orbit
- working page
- working pair for absorption refrigeration
- working pair of adsorption refrigeration
- working period