| 摘要 |
<p>Fermentation or culture of microorganisms takes place in soft receptacles which are sterile when the fermentation starts. The soft receptacle contains the medium which is to be fermented. The receptacle, which has a flexible casing, is immersed in a liquid with desired qualities, for example with reference to the density of the liquid. The medium within the receptacle may be kept in motion by an outer influence of the flexible casing.</p> |
