Distribution network, which is the core phase in Agriculture produce supply chain, is the bridge and tie to connect the producer and the client.

农产品分销网络是联接农业生产者和客户的通道和纽带，是农产品供应链中的关键环节。

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Under scanning electronic microscope, four kinds of metal structure may be observed including black core phase, white core phase, gray ring phase and white adhesion phase.

在扫描电子显微镜下可观察到四种金相组织：黑色芯相、白色芯相、灰色环形相和白色粘结相。

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Under scanning electronic microscope, four kinds of metal structure may be observed including black core phase, white core phase, gray ring phase and white adhesion phase.

在扫描电子显微镜下可观察到四种金相组织：黑色芯相、白色芯相、灰色环形相和白色粘结相。

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