micro EDM微细电火花加工microadj.微小的pref.表示"微小；百万分之一"microcrystalline phenolphthalein微晶酚酞micro-gravitation down-cabin微重力落舱micro-changes of stem diameter茎直径微变化micro-hole drilling technology微孔钻井技术microelectro-mechanical system微电子机械系统micromagnetic aureole abnomality微磁环状异常Microbial biomass phos- phorus微生物量磷micro machine remote wind system微电机遥风系统micro-irrigation system design微灌系统设计micro-structured optical fiber微结构光纤