这种海洋无脊椎动物是海洋生物链中重要的一环。
The Marine invertebrates are important links in the Marine food chain.
贵司是否有要求供应链签署无采购冲突矿物的保证函？
Do you require your supply chain to complete a DRC Conflict Free certification?
贵司是否有要求供应链签署无采购冲突矿物的保证函？
Do you require your supply chain to complete a DRC Conflict Free certification?
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