As one of important flow industry, petrifaction enterprises have typical material supply chain characters.

石化行业作为重要的流程工业之一，有其典型的物资供应链特点。

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The technology supply chain originates from the material supply chain and is formed based on rational thoughts and analysis of technology modality.

技术供应链思想导源于物料供应链，形成于技术形态的理性思维和分析。

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Based on the idea of supply chain, the concept of air material supply chain is established. The model of air material support is developed and its operational mechanism is analyzed and studied.

将供应链思想应用于航材保障中，提出航材供应链概念，建立航材供应链保障模式，研究分析其运行机制。

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The main reason for Apple announcing a lower gross margin outlook for Q3 was the uncertainty behind the raw material supply chain issues prevailing during the last few quarters due to the Japan tragedy.

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They are working with the Not For Sale Campaign to source from that region specifically to benefit the producers and communities, bringing the material to a Cambodian manufacturer also committed to a fully transparent supply chain.

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This is accounted for by increasing raw material costs, currency movements (particularly the pound's fall against the euro), bottlenecks in the supply chain and construction in progressively more challenging sites.

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