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荷载化学试剂的一类纸。可通过其颜色变化检验液体或气体中某种化合物、原子、离子的存在。
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用于化学分析的、荷载指示剂或化学试剂的纸条(卷)。黏着在一小条塑料片上的小片试纸,称为试片。可用以检验溶液的酸碱性和某种化合物、原子、离子的存在。
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silk manuscripts from the Chu tombs at Zidanku in Changsha, Hunan Province
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Silk Painting
Silk Painting at Tomb of Han Dynasty in Jinqueshan
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silk paintings from tombs of Chu State
Silk Paintings of Chu State
silk paintings unearthed at Chu tomb of Changsha City
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silk/rayon union stain
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silk-reeling wheel
Silk Road
Silk Roads: the Routes Network of Chang'an-Tianshan Corridor
Silk Roads:the Routes Network of Chang'an-Tianshan Corridor World Culture Heritage
Silk Roads:the Routes Network of Chang'an-Tianshan Corridor
silk Royal Brocade with Bird and Flower Patterns for mounting a painting or calligraphy
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