We have some knowledge of the infection. through the carefully research of host, virus original host and the sym - biosis relationship.
通过对寄主和病毒原主及其共生关系的仔细研究，我们对病毒侵染寄主的运动有了一些初步了解。
2
The history of biosis is the longtime process of succession characterizing the cyclical features of the succession and evolution of plant communities: succession-differentiation-extinction-evolution.
The sym- biosis of indoor microorganism, kinds of mite and its harm, anti-mite agents, test method of anti-mite effects as well as the an- ti-mite effect using carboxylic ester are all introduced.