• Yunnan could be a good base to produce cocoon with high quality because of its suitable natural conditions in mulberry planting and silkworm rearing.

    云南具有世界上比较适宜养蚕自然条件生产优质原料基地

    youdao

  • Yunnan could be a good base to produce cocoon with high quality because of its suitable natural conditions in mulberry planting and silkworm rearing.

    云南具有世界上比较适宜养蚕自然条件生产优质原料基地

    youdao

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