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石英聚光镜

quartz condensing-lens

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指针式石英音乐钟

second-hand type quartz music clock

quartz glass

Quartz

【计】石英晶体

quartz crystal

石英挠性伺服加速度计

quartz flexible servo accelerometer

【电】晶体片

quartz plate

【化学】当做主要石英

batch with quartz as main quartz

Quartz Powder

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