Researches were summarized about the principle of multi-wavelength multi-layer, storage system, construction of disk, process of read-write and future development.
对多波长多阶光存储的存储原理、存储系统和光盘结构、写入读出过程以及今后的研究方向进行了论述。
2
Some suggestions on the theory and practice in geometric scale up and construction design of rotating disk extraction columns have been presented.
通过设计与生产实践，对转盘式萃取塔的几何相似放大与结构设计方面的理论与实践，提出了探讨建议。
3
In construction machinery and equipment, contacting friction disk clutches are mostly used, by which the torque transferred cannot be adjusted easily and continually.