micropen微型笔microadj.微小的pref.表示"微小；百万分之一"micro plasma arc welding微弧等离子焊micrometer slide caliper测微滑动卡尺microcontent borohydride微量硼氢根micro bridge calorimeter微桥量热计microwve signal standard微波信号标准Microorganic remediation微生物治理micro-scale combustion微燃烧Micrococcus erythromyxus赤色粘液微球菌micro-operation switch微动开关micro- porous aeration微孔曝气