Freeze dry process that BCG live bacteriacounting after 4 ~ 5 years after storage remained at the level of conformity.
冻干工艺使卡介苗的活菌数经4 ~ 5年存放后仍保持在合格水平。
2
In this paper, the effect of lignosulfonates on bacteria reproduction rate in recirculated cooling (water) has been studied by plate counting method.
通过平皿计数法研究了不同类型木质素磺酸盐及其组分对循环冷却水中细菌繁殖速度的影响。
3
Enumeration by plate-counting and rolling tube methods indicated that there were abundant symbiotic bacteria resided in hindgut of termite Coptotermes formosanus.