microsynn.精密自动同步机microadj.微小的pref.表示"微小；百万分之一"micro-organisms微生物microdensitometry微显像密度计,微密度测定microsound theory微声理论microstrip dipole微带偶极子micro segregation显微偏析microphonic noise颤噪噪声,传声器效应引起的噪声microphanerophyte小高位芽植物Micro -hardness显微硬度micro- elements微量元素microcircuit chip微电路芯片