This article is mainly about the characteristic and principium of automatic suberization dense-phase pneumatic conveying technology,and the experimental study in materiel transportation of PTA.

主要介绍了自动成栓密相输送技术的特点及原理,介绍应用于对苯二甲酸物料输送的试验研究。

Pure single crystal silicon, as an important semiconductor, has already been used in many areas, such as molectron, computer technology, communication technology and automatic technology.

高纯的单晶硅是一种重要的半导体材料，在很多领域都有广泛应用，比如集成电路、电脑技术、通讯技术、自动化技术等领域。