本文的研究目标是实现在半导体蚀刻区通过自动化反馈控制系统来提高生产的自动化程度。
The goal of this paper is to design and implement a system that use automation feedback control solution to improve the automation integration in semiconductor Etch area.
印制电路板天线制造的印刷电路板的精确尺寸和蚀刻区，通常董事会地产一和十平方厘米的需要。
The PC-board antenna is fabricated as a precisely dimensioned and etched area of the printed-circuit board, and usually requires between one- and ten-square centimeters of the board real estate.
用离子蚀刻加扫描电镜观察和微区成分分析的方法研究了耐磨白口铁中球形碳化物的结构。
The structure of spheroidal carbide in wear resistant white iron was investigated by SEM observation and EPMA of ion etched metallographic specimen.
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