Testing earlier in the supply chain, near the point of primary production, might seem like the most advantageous approach.

早在供应链进行测试，靠近初级生产的点，似乎是最有利的办法。

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It is an integral part of the electron transport chain that catalyses primary charge separation.

这是一对电子传递链的电荷分离催化的主要组成部分。

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The value chain analysis is a primary step of strategic cost management, but contemporary research on it only converges on its theoretical flank.

价值链分析是战略成本管理的首要步骤，但目前对价值链的研究仅限于理论探讨。

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The transformation of Triumph from a smaller player in the fragmented aeronautics supply chain to a primary supplier gives the company an important competitive advantage we think will grow over time.

FORBES: Quality Picks = Good Earnings + Low Leverage + Reasonable Price

What do we expect the primary colours of the number one fast food chain in the U.S. to be?

FORBES: Why Picking The Right Color Can Make Or Break A Brand

The chain has been laying claim to those Americans who lack a primary care doctor.

FORBES: CVS Earnings Are Weak: But Are Retail Clinics Making A Comeback?