短語詞組短語focal -point reporting 重點報道focal l point 焦點focal aperture point of stress 應力集中點focal l point of subsidence 沉陷中心點image focal point 像焦點;像方焦點;平像場光學系統(tǒng)focal point of subsidence 沉陷中心點object focal point 物方焦點;物焦點anterior focal point 前焦點;翻譯 返回 focal point