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蚕茧
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蚕茧
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蚕茧
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silkworm cocoon
蚕茧
蚕儿老熟后,蚕体内绢丝腺中绢丝液从吐丝口吐出,在空气中经牵引凝固悬于蔟具上的囊形结构物。
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Mind Philosophy Aesthetic Education Viewpoint
MindRDR system
MindRDR系统
Mind, Self and Society
mine
mine area development plan
mine atmosphere
mine atmosphere environment
mine audio-current transmitting method
mine backfill
mine blast holes database
mine blasting vibration
mine car
mine cleaner production
mine communication system
mine compressed-air self-help system
mine compressor station
mine control network
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mine drainage system
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mine dust-proof
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mine ecological environment
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