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关注：1
2013-05-23 12:21
求翻译：光学玻璃及滤光玻璃中所用的铅及镉是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
光学玻璃及滤光玻璃中所用的铅及镉
问题补充： |
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2013-05-23 12:21:38
Optical and filter glass in lead and cadmium used in
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2013-05-23 12:23:18
optical glass and optical filter glass is used in the lead and cadmium
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2013-05-23 12:24:58
The optical glass and filters the lead and the cadmium which in the light glass uses
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2013-05-23 12:26:38
Optical glass and filter glass used in the lead and cadmium
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2013-05-23 12:28:18
Optical glass and filter glass used in the lead and cadmium
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