Molecular formula :
nature : the charged particles in solid dielectric insulation arising from the track for observation technology. Without the right chemical etching of the tracks, which can be used electron microscopy observation. Chemical etching track to enlarge it so stable, usable ordinary optical microscope observation. Development is a track automatically scan for qualitative and quantitative observation technology.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data".