microxea小骨片microadj.微小的pref.表示"微小；百万分之一"microbiological leaching微生物浸出microorganic contaminant微生物污染物microfilm reader printer显微阅读器打印机Micro-stepping control细分控制micro arc oxidation film微弧氧化膜micro-hearted minority心胸狭窄的microreaction technology微反应器技术microprogram development微程序开发microparticle collection粒子收集micro-area capacitance微区电容