It may even look like a system of discharge tubes, which does not occur in any technical practice - concentric cylinders of different pressure, from high vacuum to high pressure.
Inaweza hata kuangalia kama mfumo wa zilizopo kutokwa, ambayo haina kutokea katika mazoezi yoyote ya kiufundi - concentric mitungi ya shinikizo mbalimbali, kutoka utupu high kwa shinikizo.