1)prime focus,主聚焦2)the principal focus system,主聚焦系统3)Main concentrating point (MCP),主要聚焦点4)main focusing lens,主聚焦透镜5)Primary focused application,主要聚焦应用6)variable topic-specific crawler,变量主题聚焦爬虫
用法例句
It is to deal with the design of high-brightness CRT photoelectronical system and to analyse and examine the characteristics and parameters of both the principal focus system and the transmission system.
