micropen微型笔microadj.微小的pref.表示"微小；百万分之一"microalloying technology微合金化技术microporous blood filter血液微孔过滤器Micro tremor observation常时微动测试micro- pulverized coal超细化煤粉micro and nano tribology微纳米摩擦学micro-perforated plate微穿孔板microelectronics product微电子产品Microglossum longisporumn.长孢小舌菌Micro device fabrication器件加工microorganism technology微生物