Up to now, the engineering technology, material craftwork, vacuum and auto-control technologies required for building the ETT have been mature.
自提出设想以来几十年过去了，建设ETT所需的工程技术、材料工艺、真空技术和自动控制技术等均已成熟。
In 1986 we designed the procedure auto-control vacuum nitriding furnace and studied the pulse vacuum nitriding processes.
1986年，我们共同设计制造程序自动控制真空氮化设备和研究真空脉冲氮化工艺。
In 1986, we designed the procedure auto-control vacuum nitriding furnace and studied the pulse vacuum nitriding processes.
1986年，我们共同设计制造程序自动控制真空氮渗设备和研究真空脉冲渗氮工艺。
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