A tension fuzzy variable-structure control system was designed for constant tension of electric cable plastic wrapping automatic production process.
为保证电线加塑自动化生产过程中电线张力的恒定，设计了恒张力模糊变结构控制系统。
Stained quartz glass for filters has been made by ion diffusion under high-tension electric field. The equipment and process are described.
利用高压电场离子扩散法试制滤光石英玻璃，介绍了该法的装置与工艺。
Stained quartz glass for filters has been made by ion diffusion under high-tension electric field. The equipment and process are described.
利用高压电场离子扩散法试制滤光石英玻璃，介绍了该法的装置与工艺。
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