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Business
containing
空心
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in specified order only
Chinese
English
心理空间
psychological space
环境试验真空处理中心
Environmental Test Vacuum Center
空心
导体
hollow conductor
空心
管
hollow pipe
空心
铣刀
hollow fraise
空心
阳极
hollow anode
空心
阴极电子管
hollow-cathode lamp
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