Human visual sense is the main way to get information.Only the lifelike and unartificial virtual vision can make the users immersed in a virtual environment.

摘要人信息感知主要来源于觉，能使用户正沉浸虚拟环境，必须要生成足够自然虚拟.

It is a reform for traditional and unartificial fermentation mode to product pickles by using artificial inoculation, as well as a symbol of the modern fermentation technology.

用人工接种纯菌种腌制蔬菜是对传统自然发酵模式一种变革，也是发酵技术现代化一种标志，而研究冻干直投式发酵剂是目前发酵工业一个热点。