M3I1C3R1O1P3R1O1B3E1
18 points
MICROPROBE is validvalid
[n MICROPROBES]
a device that produces a very thin electron beam by which the chemical makeup of various compounds may be examined [n -S]
[n MICROPROBES]
a device that produces a very thin electron beam by which the chemical makeup of various compounds may be examined [n -S]