(1) This paper developed a CAD system of cyclon by synthesizing visual technique, object-oriented technique, ODBC(open database connectivity) technique and 3D drawing technique.

(2) Cyclon micro bubble flotation column is a new type and highly efficient equipment for fine ore separation. It can accomplish roughing cleaning and scavenging in one pass and has good selectivity.

(3) German chemistry produced aspirin and fertilizer, but it also filled Nazi gas chambers with Cyclon B.

(4) Actually, we not only donate for the earthquake in China, but also donate for the cyclon in Myanma.

(5) Actually, we not only donate for the earthquake, but also donate for the cyclon in Myanma.