microsynn.精密自动同步机microadj.微小的pref.表示"微小；百万分之一"micro-corrosion弱腐蚀micro-fihration微滤micro engine unit微引擎单元microflora amount菌落总数microcrack source裂纹源micro environment小环境Microinflammation微炎症Microtus agrestis黑田鼠Micro-endoscope微窥镜microconstituentsn.微量成分