Bioactivity kept at a high level in the reactor indicates that violent turbulence and shear are beneficial for the growth of microbe and the formation of a thin, dense and active film.
反应器里高水平的生物活性表明：剧烈紊动和剪切有利于微生物生长并形成薄的、致密的活性膜；
2
Coking occurs in a thinfilm on circulating, fluidized, seed coke agitated by rising gaseous products in the reactor.