[Retracted] Experimental Study on the Principle of Oxygenation and Oxygenation Performance of Surface Blade Aerator

Table 1

The size distribution of bubbles in different regions.

Region	Bubble average size/mm	Number of bubbles/each
A	1.56	67
B	1.23	53
C	0.82	32
D	0.76	26
E	0.43	12