The subsequent period of time, the technology is mainly used in military fields.
在随后的一段时间此技术主要应用于军事领域。
Quartz glass: Mainly used in military, metallurgy, instruments, and other industries in the high-temperature optical quartz glass window.
石英玻璃：主要应用于军工，冶金，仪器等行业的高温窗口光学石英玻璃片。
Quartz glass: Mainly used in military, metallurgy, instruments, and other industries in the high-temperature optical quartz glass window.
石英玻璃：主要应用于军工，冶金，仪器等行业的高温窗口光学石英玻璃片。
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