词汇	额镜
释义	额镜 éjìnɡ〔名〕医学frontal mirror
随便看	critical speed of second order critical speed of shaft critical speed of shafting critical speed range critical speed rate critical speed, resonant speed critical speeds critical speeds adjustment critical sphere critical spin dynamics critical spinnability critical spirit critical spirit of the university critical state of self-organization critical state oscillation critical state soil mechanics critical spirits critical square critical square law power critical stability critical stability method critical stability temperature critical stable state critical stage critical stain